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Posted to commits@clerezza.apache.org by re...@apache.org on 2015/03/24 11:51:41 UTC
[5/9] clerezza git commit: CLEREZZA-966: moved ported rdf.* modules
to hierarchy
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/storage.web/pom.xml
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diff --git a/rdf/storage.web/pom.xml b/rdf/storage.web/pom.xml
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index 0000000..4315683
--- /dev/null
+++ b/rdf/storage.web/pom.xml
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+<?xml version="1.0" encoding="UTF-8" standalone="no"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+
+-->
+
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>clerezza</artifactId>
+ <version>7-SNAPSHOT</version>
+ <relativePath />
+ </parent>
+ <artifactId>rdf.storage.web</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ <packaging>bundle</packaging>
+ <name>Clerezza - RDF Storage Web (Caching Web Storage Provider)</name>
+ <description>A (currently read-only) storage provider retrieving graphs from the web. It
+ implements a caching proxy, relying on another provider for storing triples.</description>
+ <dependencies>
+ <dependency>
+ <groupId>org.osgi</groupId>
+ <artifactId>org.osgi.compendium</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.osgi</groupId>
+ <artifactId>org.osgi.core</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.ontologies</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.utils</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.scala.utils</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>osgi.services</artifactId>
+ <version>0.2</version>
+ </dependency>
+ <dependency>
+ <groupId>org.scala-lang</groupId>
+ <artifactId>scala-library</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>javax.ws.rs</groupId>
+ <artifactId>jsr311-api</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza.ext</groupId>
+ <artifactId>slf4j-scala-api</artifactId>
+ <version>1.6.3</version>
+ </dependency>
+ </dependencies>
+ <build>
+ <sourceDirectory>src/main/scala</sourceDirectory>
+ <testSourceDirectory>src/test/scala</testSourceDirectory>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-bundle-plugin</artifactId>
+ <configuration>
+ <instructions>
+ <Service-Component>OSGI-INF/serviceComponents.xml</Service-Component>
+ <Export-Package>${project.groupId}.${project.artifactId}</Export-Package>
+ <Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
+ </instructions>
+ </configuration>
+ </plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-eclipse-plugin</artifactId>
+ <configuration>
+ <downloadSources>true</downloadSources>
+ <downloadJavadocs>true</downloadJavadocs>
+ <buildcommands>
+ <buildcommand>ch.epfl.lamp.sdt.core.scalabuilder</buildcommand>
+ </buildcommands>
+ <additionalProjectnatures>
+ <projectnature>ch.epfl.lamp.sdt.core.scalanature</projectnature>
+ </additionalProjectnatures>
+ <classpathContainers>
+ <classpathContainer>org.eclipse.jdt.launching.JRE_CONTAINER
+ </classpathContainer>
+ <classpathContainer>ch.epfl.lamp.sdt.launching.SCALA_CONTAINER
+ </classpathContainer>
+ </classpathContainers>
+ </configuration>
+ </plugin>
+ <plugin>
+ <groupId>org.scala-tools</groupId>
+ <artifactId>maven-scala-plugin</artifactId>
+ </plugin>
+ </plugins>
+ </build>
+</project>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/storage.web/src/main/resources/OSGI-INF/metatype/metatype.xml
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diff --git a/rdf/storage.web/src/main/resources/OSGI-INF/metatype/metatype.xml b/rdf/storage.web/src/main/resources/OSGI-INF/metatype/metatype.xml
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index 0000000..e1bd1fb
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+++ b/rdf/storage.web/src/main/resources/OSGI-INF/metatype/metatype.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+
+-->
+
+<metatype:MetaData xmlns:metatype="http://www.osgi.org/xmlns/metatype/v1.0.0" localization="OSGI-INF/metatype/metatype">
+ <OCD id="org.apache.clerezza.rdf.storage.web.WebProxy"
+ name="Clerezza SCB Web Storage Provider"
+ description="%org.apache.clerezza.rdf.storage.web.WebProxy.description">
+ <AD id="network-timeout" type="int" default="false" name="Network Timeout" description="Specifies the network timeout in ms."/>
+ </OCD>
+ <Designate pid="org.apache.clerezza.rdf.storage.web.WebProxy">
+ <Object ocdref="org.apache.clerezza.rdf.storage.web.WebProxy"/>
+ </Designate>
+</metatype:MetaData>
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/storage.web/src/main/resources/OSGI-INF/serviceComponents.xml
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diff --git a/rdf/storage.web/src/main/resources/OSGI-INF/serviceComponents.xml b/rdf/storage.web/src/main/resources/OSGI-INF/serviceComponents.xml
new file mode 100644
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--- /dev/null
+++ b/rdf/storage.web/src/main/resources/OSGI-INF/serviceComponents.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+
+-->
+
+<components xmlns:scr="http://www.osgi.org/xmlns/scr/v1.0.0">
+
+ <scr:component enabled="true" name="org.apache.clerezza.rdf.storage.web.WebProxy">
+ <implementation class="org.apache.clerezza.rdf.storage.web.WebProxy"/>
+ <service servicefactory="false">
+ <provide interface="org.apache.clerezza.rdf.storage.web.WebProxy"/>
+ <provide interface="org.apache.clerezza.rdf.core.access.WeightedTcProvider"/>
+ </service>
+ <!-- hard coded <property name="weight" type="Integer" value="0"/> -->
+ <reference name="weightedTcProvider" interface="org.apache.clerezza.rdf.core.access.WeightedTcProvider"
+ cardinality="1..n" policy="dynamic" bind="bindWeightedTcProvider" unbind="unbindWeightedTcProvider"/>
+ <reference name="parser" interface="org.apache.clerezza.rdf.core.serializedform.Parser"
+ cardinality="1..1" policy="static" bind="bindParser" unbind="unbindParser"/>
+ <property name="network-timeout" value="3000" type="Integer"/>
+ </scr:component>
+
+</components>
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/storage.web/src/main/scala/WebProxy.scala
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diff --git a/rdf/storage.web/src/main/scala/WebProxy.scala b/rdf/storage.web/src/main/scala/WebProxy.scala
new file mode 100644
index 0000000..3a03e3b
--- /dev/null
+++ b/rdf/storage.web/src/main/scala/WebProxy.scala
@@ -0,0 +1,271 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.clerezza.rdf.storage.web
+
+
+import org.apache.commons.rdf.ImmutableGraph
+import org.apache.commons.rdf.Iri
+import org.apache.commons.rdf._
+import org.apache.commons.rdf.impl.utils.AbstractGraph
+import org.osgi.service.component.ComponentContext
+import java.io.IOException
+import java.net.{HttpURLConnection, URL}
+import org.apache.clerezza.rdf.core.serializedform.SupportedFormat
+import org.apache.clerezza.rdf.core.serializedform.Parser
+import java.security.{PrivilegedExceptionAction, PrivilegedActionException, AccessController}
+
+import org.slf4j.scala._
+import org.apache.clerezza.rdf.core.access._
+import org.apache.clerezza.rdf.core._
+import java.sql.Time
+
+/**
+ * The Web Proxy Service enables applications to request remote (and local) graphs.
+ * It keeps cached version of the remote graphs in store for faster delivery.
+ *
+ */
+class WebProxy extends WeightedTcProvider with Logging {
+
+ val networkTimeoutKey = "network-timeout"
+
+ private var networkTimeout: Int = _
+
+ private var tcProvider: TcProviderMultiplexer = new TcProviderMultiplexer
+
+ /**
+ * Register a provider
+ *
+ * @param provider
+ * the provider to be registered
+ */
+ protected def bindWeightedTcProvider(provider: WeightedTcProvider): Unit = {
+ tcProvider.addWeightedTcProvider(provider)
+ }
+
+ /**
+ * Deregister a provider
+ *
+ * @param provider
+ * the provider to be deregistered
+ */
+ protected def unbindWeightedTcProvider(provider: WeightedTcProvider): Unit = {
+ tcProvider.removeWeightedTcProvider(provider)
+ }
+
+ /**OSGI method, called on activation */
+ protected def activate(context: ComponentContext) = {
+ networkTimeout = Integer.parseInt(context.getProperties.get(networkTimeoutKey).toString)
+ }
+
+
+ private var parser: Parser = null
+
+ protected def bindParser(p: Parser) = {
+ parser = p
+ }
+
+ protected def unbindParser(p: Parser) = {
+ parser = null
+ }
+
+ def getWeight: Int = {
+ return 0
+ }
+
+ /**
+ * Any Graph is available as ImmutableGraph as well as immutable Graph
+ *
+ * @param name
+ * @return
+ * @throws NoSuchEntityException
+ */
+ def getMGraph(name: Iri): Graph = {
+ val graph = getImmutableGraph(name)
+ return new AbstractGraph() {
+ protected def performFilter(subject: BlankNodeOrIri, predicate: Iri, `object` : RdfTerm): java.util.Iterator[Triple] = {
+ graph.filter(subject, predicate, `object`)
+ }
+
+ def performSize = graph.size
+ }
+ }
+
+ def getImmutableGraph(name: Iri): ImmutableGraph = {
+ try {
+ getGraph(name, Cache.Fetch)
+ } catch {
+ case e: IOException => {
+ logger.debug("could not get graph by dereferencing uri", e)
+ throw new NoSuchEntityException(name)
+ }
+
+ }
+ }
+
+ def getGraph(name: Iri): Graph = {
+ return getMGraph(name)
+ }
+
+ def createGraph(name: Iri): Graph = {
+ throw new UnsupportedOperationException
+ }
+
+ def createImmutableGraph(name: Iri, triples: Graph): ImmutableGraph = {
+ throw new UnsupportedOperationException
+ }
+
+ def deleteGraph(name: Iri): Unit = {
+ throw new UnsupportedOperationException
+ }
+
+ def getNames(graph: ImmutableGraph): java.util.Set[Iri] = {
+ var result: java.util.Set[Iri] = new java.util.HashSet[Iri]
+ import collection.JavaConversions._
+ for (name <- listGraphs) {
+ if (getImmutableGraph(name).equals(graph)) {
+ result.add(name)
+ }
+ }
+ return result
+ }
+
+ def listGraphs: java.util.Set[Iri] = {
+ var result: java.util.Set[Iri] = new java.util.HashSet[Iri]
+ result.addAll(listMGraphs)
+ result.addAll(listImmutableGraphs)
+ return result
+ }
+
+ def listMGraphs: java.util.Set[Iri] = {
+ //or should we list graphs for which we have a cached version?
+ return java.util.Collections.emptySet[Iri]
+ }
+
+ def listImmutableGraphs: java.util.Set[Iri] = {
+ return java.util.Collections.emptySet[Iri]
+ }
+
+ /**
+ * The semantics of this resource
+ * @param update if a remote URI, update information on the resource first
+ */
+ def getGraph(name: Iri, updatePolicy: Cache.Value): ImmutableGraph = {
+ logger.debug("getting graph " + name)
+ if (name.getUnicodeString.indexOf('#') != -1) {
+ logger.debug("not dereferencing URI with hash sign. Please see CLEREZZA-533 for debate.")
+ throw new NoSuchEntityException(name)
+ }
+ if (name.getUnicodeString.startsWith("urn")) {
+ //these are not dereferenceable
+ throw new NoSuchEntityException(name)
+ }
+ val cacheGraphName = new Iri("urn:x-localinstance:/cache/" + name.getUnicodeString)
+ //todo: follow redirects and keep track of them
+ //todo: keep track of headers especially date and etag. test for etag similarity
+ //todo: for https connection allow user to specify his webid and send his key: ie allow web server to be an agent
+ //todo: add GRDDL functionality, so that other return types can be processed too
+ //todo: enable ftp and other formats (though content negotiation won't work there)
+ def updateGraph() {
+ val url = new URL(name.getUnicodeString)
+ val connection = url.openConnection()
+ connection match {
+ case hc: HttpURLConnection => {
+ hc.addRequestProperty("Accept", acceptHeader)
+ hc.setReadTimeout(networkTimeout)
+ hc.setConnectTimeout(networkTimeout)
+ };
+ }
+ connection.connect()
+ val in = connection.getInputStream()
+ val mediaType = connection.getContentType()
+ val remoteTriples = parser.parse(in, mediaType, name)
+ tcProvider.synchronized {
+ try {
+ tcProvider.deleteGraph(cacheGraphName)
+ } catch {
+ case e: NoSuchEntityException =>;
+ }
+ tcProvider.createImmutableGraph(cacheGraphName, remoteTriples)
+ }
+ }
+ try {
+ //the logic here is not quite right, as we don't look at time of previous fetch.
+ updatePolicy match {
+ case Cache.Fetch => try {
+ tcProvider.getImmutableGraph(cacheGraphName)
+ } catch {
+ case e: NoSuchEntityException => updateGraph(); tcProvider.getImmutableGraph(cacheGraphName)
+ }
+ case Cache.ForceUpdate => updateGraph(); tcProvider.getImmutableGraph(cacheGraphName)
+ case Cache.CacheOnly => tcProvider.getImmutableGraph(cacheGraphName)
+ }
+ } catch {
+ case ex: PrivilegedActionException => {
+ var cause: Throwable = ex.getCause
+ if (cause.isInstanceOf[UnsupportedOperationException]) {
+ throw cause.asInstanceOf[UnsupportedOperationException]
+ }
+ if (cause.isInstanceOf[EntityAlreadyExistsException]) {
+ throw cause.asInstanceOf[EntityAlreadyExistsException]
+ }
+ if (cause.isInstanceOf[RuntimeException]) {
+ throw cause.asInstanceOf[RuntimeException]
+ }
+ throw new RuntimeException(cause)
+ }
+ }
+ }
+
+
+ private lazy val acceptHeader = {
+
+ import scala.collection.JavaConversions._
+
+ (for (f <- parser.getSupportedFormats) yield {
+ val qualityOfFormat = {
+ f match {
+ //the default, well established format
+ case SupportedFormat.RDF_XML => "1.0";
+ //n3 is a bit less well defined and/or many parsers supports only subsets
+ case SupportedFormat.N3 => "0.6";
+ //we prefer most dedicated formats to (X)HTML, not because those are "better",
+ //but just because it is quite likely that the pure RDF format will be
+ //lighter (contain less presentation markup), and it is also possible that HTML does not
+ //contain any RDFa, but just points to another format.
+ case SupportedFormat.XHTML => "0.5";
+ //we prefer XHTML over html, because parsing (should) be easier
+ case SupportedFormat.HTML => "0.4";
+ //all other formats known currently are structured formats
+ case _ => "0.8"
+ }
+ }
+ f + "; q=" + qualityOfFormat + ","
+ }).mkString + " *; q=.1" //is that for GRDDL?
+ }
+}
+
+object Cache extends Enumeration {
+ /**fetch if not in cache, if version in cache is out of date, or return cache */
+ val Fetch = Value
+ /**fetch from source whatever is in cache */
+ val ForceUpdate = Value
+ /**only get cached version. If none exists return empty graph */
+ val CacheOnly = Value
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/LICENSE
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diff --git a/rdf/web/LICENSE b/rdf/web/LICENSE
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+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
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+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/pom.xml
----------------------------------------------------------------------
diff --git a/rdf/web/pom.xml b/rdf/web/pom.xml
new file mode 100644
index 0000000..7dc74da
--- /dev/null
+++ b/rdf/web/pom.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+
+-->
+
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>clerezza</artifactId>
+ <version>7-SNAPSHOT</version>
+ <relativePath />
+ </parent>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.web</artifactId>
+ <packaging>pom</packaging>
+ <version>1.0.0-SNAPSHOT</version>
+ <name>Clerezza - RDF Web Access</name>
+ <description>Allows access to Clerezza graphs over HTTP with JAX-RS</description>
+ <modules>
+ <module>rdf.web.core</module>
+ <module>rdf.web.ontologies</module>
+ </modules>
+</project>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/LICENSE
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/LICENSE b/rdf/web/rdf.web.core/LICENSE
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/rdf/web/rdf.web.core/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/nbactions.xml
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/nbactions.xml b/rdf/web/rdf.web.core/nbactions.xml
new file mode 100644
index 0000000..49e8307
--- /dev/null
+++ b/rdf/web/rdf.web.core/nbactions.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<actions>
+ <action>
+ <actionName>CUSTOM-deploy to localhost:8080</actionName>
+ <displayName>deploy to localhost:8080</displayName>
+ <goals>
+ <goal>install</goal>
+ <goal>org.apache.sling:maven-sling-plugin:install</goal>
+ </goals>
+ </action>
+</actions>
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/pom.xml
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/pom.xml b/rdf/web/rdf.web.core/pom.xml
new file mode 100644
index 0000000..2cad597
--- /dev/null
+++ b/rdf/web/rdf.web.core/pom.xml
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+
+ -->
+
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>clerezza</artifactId>
+ <version>7-SNAPSHOT</version>
+ <relativePath />
+ </parent>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.web.core</artifactId>
+ <packaging>bundle</packaging>
+ <version>1.0.0-SNAPSHOT</version>
+ <name>Clerezza - RDF Web Access Core</name>
+ <description>The core part of Clerezza RDF Web Access</description>
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-scr-plugin</artifactId>
+ </plugin>
+ </plugins>
+ </build>
+ <dependencies>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>platform.typerendering.core</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>platform.typerendering.scalaserverpages</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.core</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.jena.serializer</artifactId>
+ <scope>test</scope>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.jena.parser</artifactId>
+ <scope>test</scope>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.easymock</groupId>
+ <artifactId>easymock</artifactId>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>javax.ws.rs</groupId>
+ <artifactId>jsr311-api</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>jaxrs.utils</artifactId>
+ <version>0.9</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.ontologies</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>rdf.web.ontologies</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>platform.globalmenu.api</artifactId>
+ <version>0.3</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>permissiondescriptions</artifactId>
+ <version>0.2</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.clerezza</groupId>
+ <artifactId>web.fileserver</artifactId>
+ <version>0.10</version>
+ </dependency>
+ </dependencies>
+</project>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Backup.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Backup.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Backup.java
new file mode 100644
index 0000000..440e877
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Backup.java
@@ -0,0 +1,161 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.clerezza.rdf.web.core;
+
+import org.apache.clerezza.platform.Constants;
+import org.apache.clerezza.platform.globalmenu.GlobalMenuItem;
+import org.apache.clerezza.platform.globalmenu.GlobalMenuItemsProvider;
+import org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesService;
+import org.apache.commons.rdf.BlankNode;
+import org.apache.commons.rdf.Graph;
+import org.apache.clerezza.rdf.core.access.security.TcPermission;
+import org.apache.commons.rdf.impl.utils.simple.SimpleGraph;
+import org.apache.clerezza.rdf.ontologies.RDF;
+import org.apache.clerezza.rdf.utils.GraphNode;
+import org.apache.clerezza.rdf.web.ontologies.BACKUP;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.Service;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.service.component.ComponentContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.apache.clerezza.rdf.ontologies.PLATFORM;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.ResponseBuilder;
+import javax.ws.rs.core.Response.Status;
+import java.net.URL;
+import java.security.AccessControlException;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * This JAX-RS resource provides a method to retrieve a zip file containing
+ * all triple collections that the use may access. The triple collection are
+ * serialized in N-Triples format. The URI path of this resource is
+ * "/admin/backup".
+ *
+ * This class adds a global menu-item for users that can read the system graph
+ * (as there's currently no dedicated backup-permission).
+ *
+ * @author hasan, reto
+ */
+@Component
+@Service({Object.class, GlobalMenuItemsProvider.class})
+@Property(name = "javax.ws.rs", boolValue = true)
+@Path("/admin/backup")
+public class Backup implements GlobalMenuItemsProvider {
+
+ final Logger logger = LoggerFactory.getLogger(Backup.class);
+ @Reference
+ private ScalaServerPagesService scalaServerPagesService;
+ private Set<ServiceRegistration> serviceRegistrations = new HashSet<ServiceRegistration>();
+
+ /**
+ * The activate method is called when SCR activates the component configuration.
+ *
+ * @param componentContext
+ */
+ protected void activate(ComponentContext componentContext) {
+ URL templateURL = getClass().getResource("backup-management.ssp");
+ serviceRegistrations.add(scalaServerPagesService.registerScalaServerPage(templateURL, BACKUP.BackupAdminPage, "naked",
+ MediaType.APPLICATION_XHTML_XML_TYPE));
+ }
+
+ protected void deactivate(ComponentContext context) {
+ for (ServiceRegistration r : serviceRegistrations) {
+ r.unregister();
+ }
+ }
+
+ /**
+ * Get a zipped file containing all triple collections which the
+ * user may access. The resource is accessible through the URI path
+ * "/admin/backup/download".
+ * The triple collections are serialized in N-Triples format before being
+ * archived in a single zipped file.
+ * A mapping of the names of the files in the archive to triple collection
+ * names is available as well in the archive as a text file named
+ * triplecollections.nt.
+ *
+ * @return a response that will cause the creation of a zipped file
+ */
+ @GET
+ @Path("download")
+ @Produces("application/zip")
+ public Response download() {
+ AccessController.checkPermission(new BackupPermission());
+ return AccessController.doPrivileged(new PrivilegedAction<Response>() {
+
+ @Override
+ public Response run() {
+ ResponseBuilder responseBuilder = Response.status(Status.OK).
+ entity(Backup.this);
+ responseBuilder.header("Content-Disposition",
+ "attachment; filename=backup" + getCurrentDate() + ".zip");
+ return responseBuilder.build();
+ }
+ });
+
+ }
+
+ @GET
+ public GraphNode overviewPage() {
+ Graph resultGraph = new SimpleGraph();
+ GraphNode result = new GraphNode(new BlankNode(), resultGraph);
+ result.addProperty(RDF.type, BACKUP.BackupAdminPage);
+ result.addProperty(RDF.type, PLATFORM.HeadedPage);
+ return result;
+ }
+
+ private String getCurrentDate() {
+ DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
+ Date date = new Date();
+ return dateFormat.format(date);
+ }
+
+ @Override
+ public Set<GlobalMenuItem> getMenuItems() {
+ //need backup or restore permission for the menu item to be shown
+ Set<GlobalMenuItem> result = new HashSet<GlobalMenuItem>();
+ try {
+ AccessController.checkPermission(new BackupPermission());
+ } catch (AccessControlException e) {
+ try {
+ AccessController.checkPermission(new RestorePermission());
+ } catch (AccessControlException e1) {
+ return result;
+ }
+ }
+ result.add(new GlobalMenuItem("/admin/backup",
+ "BCK", "Backup and Restore", 5, "Administration"));
+ return result;
+ }
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupMessageBodyWriter.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupMessageBodyWriter.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupMessageBodyWriter.java
new file mode 100644
index 0000000..5029eea
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupMessageBodyWriter.java
@@ -0,0 +1,180 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.clerezza.rdf.web.core;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.locks.Lock;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+import javax.ws.rs.Produces;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+import javax.ws.rs.ext.MessageBodyWriter;
+import javax.ws.rs.ext.Provider;
+import org.apache.clerezza.rdf.core.LiteralFactory;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.commons.rdf.Graph;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.apache.commons.rdf.Graph;
+import org.apache.commons.rdf.Iri;
+import org.apache.clerezza.rdf.core.access.TcManager;
+import org.apache.commons.rdf.impl.utils.simple.SimpleGraph;
+import org.apache.commons.rdf.impl.utils.TripleImpl;
+import org.apache.clerezza.rdf.core.serializedform.Serializer;
+import org.apache.clerezza.rdf.core.serializedform.SupportedFormat;
+import org.apache.clerezza.rdf.core.serializedform.UnsupportedFormatException;
+import org.apache.clerezza.rdf.ontologies.RDF;
+import org.apache.clerezza.rdf.web.ontologies.BACKUP;
+
+/**
+ * This does the actual work of producing a backup
+ *
+ * @author hasan, reto
+ */
+@Component
+@Service(Object.class)
+@Property(name="javax.ws.rs", boolValue=true)
+@Produces("application/zip")
+@Provider
+public class BackupMessageBodyWriter implements MessageBodyWriter<Backup> {
+
+ @Reference
+ TcManager tcManager;
+
+ @Reference
+ Serializer serializer;
+
+ final Logger logger = LoggerFactory.getLogger(BackupMessageBodyWriter.class);
+
+ private final String folder = "graphs/";
+
+
+ byte[] createBackup() {
+ ByteArrayOutputStream result = new ByteArrayOutputStream();
+ writeBackup(result);
+ return result.toByteArray();
+ }
+
+ private void archive(ZipOutputStream compressedTcs,
+ Graph tripleCollection,
+ String fileName) throws IOException, UnsupportedFormatException {
+ Lock readLock = null;
+ compressedTcs.putNextEntry(new ZipEntry(fileName));
+ if (tripleCollection instanceof Graph) {
+ readLock = ((Graph) tripleCollection).getLock().readLock();
+ readLock.lock();
+ }
+ try {
+ serializer.serialize(compressedTcs, tripleCollection,
+ SupportedFormat.N_TRIPLE);
+ } finally {
+ if (readLock != null) {
+ readLock.unlock();
+ }
+ }
+ }
+
+ private String getTcFileName(Iri tcUri, String extension,
+ Map<String, Integer> fileNameCount) {
+ String fileName = tcUri.getUnicodeString();
+ fileName = fileName.substring(fileName.lastIndexOf("/")+1);
+ Integer count = fileNameCount.get(fileName);
+ if (count == null) {
+ fileNameCount.put(fileName, 0);
+ } else {
+ count++;
+ fileNameCount.put(fileName, count);
+ fileName = fileName.concat("_" + count);
+ }
+ return fileName.concat(extension);
+ }
+
+ private void writeBackup(OutputStream result) {
+ Map<String, Integer> fileNameCount = new HashMap<String, Integer>();
+ Graph backupContents = new SimpleGraph();
+ try {
+ ZipOutputStream compressedTcs = new ZipOutputStream(result);
+
+ compressedTcs.putNextEntry(new ZipEntry(folder));
+
+ Set<Iri> tripleCollections = tcManager.listGraphs();
+ Iterator<Iri> tcIris = tripleCollections.iterator();
+ while (tcIris.hasNext()) {
+ Iri tcUri = tcIris.next();
+ String fileName = folder + getTcFileName(tcUri, ".nt",
+ fileNameCount);
+ Graph tripleCollection = tcManager.getGraph(tcUri);
+ archive(compressedTcs, tripleCollection, fileName);
+ if (tripleCollection instanceof Graph) {
+ backupContents.add(new TripleImpl(tcUri, RDF.type,
+ BACKUP.Graph));
+ } else {
+ backupContents.add(new TripleImpl(tcUri, RDF.type,
+ BACKUP.Graph));
+ }
+ backupContents.add(new TripleImpl(tcUri, BACKUP.file,
+ LiteralFactory.getInstance().createTypedLiteral(
+ fileName)));
+ }
+ archive(compressedTcs, backupContents, "triplecollections.nt");
+ compressedTcs.close();
+
+ } catch (UnsupportedFormatException ufe) {
+ throw new WebApplicationException(Response.status(
+ Status.NOT_ACCEPTABLE).entity(ufe.getMessage()).build());
+ } catch (IOException ex) {
+ throw new WebApplicationException(ex);
+ }
+ }
+
+ @Override
+ public boolean isWriteable(Class<?> type, Type genericType,
+ Annotation[] annotations, MediaType mediaType) {
+ return Backup.class.isAssignableFrom(type);
+ }
+
+ @Override
+ public long getSize(Backup t, Class<?> type, Type genericType,
+ Annotation[] annotations, MediaType mediaType) {
+ return -1;
+ }
+
+ @Override
+ public void writeTo(Backup t, Class<?> type, Type genericType,
+ Annotation[] annotations, MediaType mediaType,
+ MultivaluedMap<String, Object> httpHeaders,
+ OutputStream entityStream) throws IOException, WebApplicationException {
+ writeBackup(entityStream);
+ }
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupPermission.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupPermission.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupPermission.java
new file mode 100644
index 0000000..caf5d18
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/BackupPermission.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.clerezza.rdf.web.core;
+
+import org.apache.clerezza.permissiondescriptions.PermissionInfo;
+
+import java.security.Permission;
+
+/**
+ * Permission to retrieve a backup copy of all graphs provided by TcManager
+ *
+ * @author reto
+ */
+@PermissionInfo(value="Backup Permission", description="Permission " +
+ "to retrieve a backup of all Triple Collections")
+public class BackupPermission extends Permission {
+
+
+ public BackupPermission() {
+ super("ImmutableGraph Management permission");
+ }
+ /**
+ *
+ * @param target ignored
+ * @param action ignored
+ */
+ public BackupPermission(String target, String actions) {
+ super("ImmutableGraph Management permission");
+ }
+
+ @Override
+ public boolean implies(Permission permission) {
+ return equals(permission);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return getClass().equals(obj.getClass());
+ }
+
+ @Override
+ public int hashCode() {
+ return 77988;
+ }
+
+ @Override
+ public String getActions() {
+ return "";
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Delete.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Delete.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Delete.java
new file mode 100644
index 0000000..c00bf1b
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/Delete.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.clerezza.rdf.web.core;
+
+import javax.ws.rs.FormParam;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriInfo;
+import org.apache.clerezza.jaxrs.utils.RedirectUtil;
+import org.apache.clerezza.platform.typerendering.RenderletManager;
+import org.apache.commons.rdf.Graph;
+import org.apache.commons.rdf.Graph;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.commons.rdf.Iri;
+import org.apache.clerezza.rdf.core.access.NoSuchEntityException;
+import org.apache.clerezza.rdf.core.access.TcManager;
+import org.apache.commons.rdf.impl.utils.simple.SimpleGraph;
+import org.apache.commons.rdf.impl.utils.TripleImpl;
+import org.apache.clerezza.rdf.ontologies.FOAF;
+import org.apache.clerezza.rdf.ontologies.OWL;
+import org.apache.clerezza.rdf.ontologies.PLATFORM;
+import org.apache.clerezza.rdf.ontologies.RDF;
+import org.apache.clerezza.rdf.utils.Smusher;
+import org.osgi.service.component.ComponentContext;
+
+/**
+ * Provides a method to remove duplicate noded from (aka smush) a ImmutableGraph
+ *
+ * @author reto
+ */
+@Component
+@Service(Object.class)
+@Property(name="javax.ws.rs", boolValue=true)
+@Path("/admin/graphs/delete")
+public class Delete {
+
+ @Reference
+ private TcManager tcManager;
+
+
+ @POST
+ public Response delete(@Context UriInfo uriInfo, @FormParam("graphName") Iri graphName) {
+ tcManager.deleteGraph(graphName);
+ return RedirectUtil.createSeeOtherResponse("./", uriInfo);
+ }
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagement.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagement.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagement.java
new file mode 100644
index 0000000..886d1e7
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagement.java
@@ -0,0 +1,120 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.clerezza.rdf.web.core;
+
+import java.net.URL;
+import java.security.AccessControlException;
+import java.security.AccessController;
+import java.util.HashSet;
+import java.util.Set;
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.UriInfo;
+import org.apache.clerezza.jaxrs.utils.TrailingSlash;
+import org.apache.clerezza.platform.globalmenu.GlobalMenuItem;
+import org.apache.clerezza.platform.globalmenu.GlobalMenuItemsProvider;
+import org.apache.clerezza.platform.typerendering.RenderletManager;
+import org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet;
+import org.apache.commons.rdf.BlankNode;
+import org.apache.commons.rdf.ImmutableGraph;
+import org.apache.clerezza.rdf.core.LiteralFactory;
+import org.apache.commons.rdf.Graph;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.commons.rdf.Iri;
+import org.apache.clerezza.rdf.core.access.TcManager;
+import org.apache.commons.rdf.impl.utils.simple.SimpleGraph;
+import org.apache.commons.rdf.impl.utils.TripleImpl;
+import org.apache.clerezza.rdf.ontologies.PLATFORM;
+import org.apache.clerezza.rdf.ontologies.RDF;
+import org.apache.clerezza.rdf.ontologies.TCPROVIDER;
+import org.apache.clerezza.rdf.utils.GraphNode;
+import org.apache.clerezza.rdf.web.ontologies.GRAPHMANAGEMENT;
+import org.osgi.service.component.ComponentContext;
+
+/**
+ * This JAX-RS resource provides an interface designed to allow various management
+ * functions on triple collections. The URI path of this resource is
+ * "/admin/graph-management".
+ *
+ * @author reto
+ */
+@Component
+@Service({Object.class, GlobalMenuItemsProvider.class})
+@Property(name="javax.ws.rs", boolValue=true)
+@Path("/admin/graphs")
+public class GraphManagement implements GlobalMenuItemsProvider {
+
+ @Reference
+ private TcManager tcManager;
+
+ @Reference
+ private RenderletManager renderletManager;
+
+ protected void activate(ComponentContext componentContext) {
+ URL templateURL = getClass().getResource("graph-management.ssp");
+ renderletManager.registerRenderlet(ScalaServerPagesRenderlet.class.getName(),
+ new Iri(templateURL.toString()), GRAPHMANAGEMENT.GraphManagementPage,
+ "naked", MediaType.APPLICATION_XHTML_XML_TYPE, true);
+ }
+
+ @GET
+ public GraphNode mainPage(@Context UriInfo uriInfo) {
+ AccessController.checkPermission(new GraphManagementAppPermission());
+ TrailingSlash.enforcePresent(uriInfo);
+ final SimpleGraph resultGraph = new SimpleGraph();
+ GraphNode graphNode = new GraphNode(new BlankNode(), resultGraph);
+ Set<Iri> tripleCollections = tcManager.listGraphs();
+ for (Iri uriRef : tripleCollections) {
+ graphNode.addProperty(GRAPHMANAGEMENT.tripleCollection, uriRef);
+ final Graph tripleCollection = tcManager.getGraph(uriRef);
+ resultGraph.add(new TripleImpl(uriRef,GRAPHMANAGEMENT.size,
+ LiteralFactory.getInstance().createTypedLiteral(
+ tripleCollection.size())));
+ if (tripleCollection instanceof ImmutableGraph) {
+ resultGraph.add(new TripleImpl(uriRef,RDF.type, TCPROVIDER.Graph));
+ } else {
+ resultGraph.add(new TripleImpl(uriRef,RDF.type, TCPROVIDER.Graph));
+ }
+ }
+ graphNode.addProperty(RDF.type, GRAPHMANAGEMENT.GraphManagementPage);
+ graphNode.addProperty(RDF.type, PLATFORM.HeadedPage);
+ return graphNode;
+ }
+
+ @Override
+ public Set<GlobalMenuItem> getMenuItems() {
+
+ Set<GlobalMenuItem> items = new HashSet<GlobalMenuItem>();
+ try {
+ AccessController.checkPermission(
+ new GraphManagementAppPermission());
+ } catch (AccessControlException e) {
+ return items;
+ }
+ String path = "/admin/graphs";
+ items.add(new GlobalMenuItem(path, "GM", "Graphs", 5,"Administration"));
+ return items;
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagementAppPermission.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagementAppPermission.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagementAppPermission.java
new file mode 100644
index 0000000..09ec04d
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/GraphManagementAppPermission.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.clerezza.rdf.web.core;
+
+import java.security.Permission;
+import org.apache.clerezza.permissiondescriptions.PermissionInfo;
+
+/**
+ * Permission to use the ImmutableGraph-Management page. Nothe that the user
+ * additioonally needs permssion on the Graphs they manipulate.
+ *
+ * @author reto
+ */
+@PermissionInfo(value="ImmutableGraph Management Access Permission", description="Grants access " +
+ "to the ImmutableGraph Management page")
+public class GraphManagementAppPermission extends Permission {
+
+
+ public GraphManagementAppPermission() {
+ super("ImmutableGraph Management permission");
+ }
+ /**
+ *
+ * @param target ignored
+ * @param action ignored
+ */
+ public GraphManagementAppPermission(String target, String actions) {
+ super("ImmutableGraph Management permission");
+ }
+
+ @Override
+ public boolean implies(Permission permission) {
+ return equals(permission);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return getClass().equals(obj.getClass());
+ }
+
+ @Override
+ public int hashCode() {
+ return 77985;
+ }
+
+ @Override
+ public String getActions() {
+ return "";
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/PlatformRestorer.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/PlatformRestorer.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/PlatformRestorer.java
new file mode 100644
index 0000000..2d96602
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/PlatformRestorer.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.clerezza.rdf.web.core;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.ResponseBuilder;
+import javax.ws.rs.core.UriInfo;
+import org.apache.clerezza.jaxrs.utils.RedirectUtil;
+import org.apache.clerezza.jaxrs.utils.form.FormFile;
+import org.apache.clerezza.jaxrs.utils.form.MultiPartBody;
+import org.apache.clerezza.rdf.core.access.TcManager;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.Service;
+
+/**
+ * A service to restore the triple collections of a clerezza platform instance
+ *
+ * @author reto
+ */
+@Component
+@Service({Object.class, PlatformRestorer.class})
+@Property(name = "javax.ws.rs", boolValue = true)
+@Path("/admin/backup/restore")
+public class PlatformRestorer {
+
+ @Reference
+ private Restorer restorer;
+
+ @Reference
+ private TcManager tcManager;
+
+ /**
+ * Restores the triple collection of TcManager from a backup
+ *
+ * @param backupData the backup data
+ */
+ public void restore(InputStream backupData) throws IOException {
+ restorer.restore(backupData, tcManager);
+ }
+
+ @POST
+ public Response restore(MultiPartBody body, @Context final UriInfo uriInfo)
+ throws Throwable {
+ AccessController.checkPermission(new RestorePermission());
+ FormFile[] files = body.getFormFileParameterValues("file");
+ if (files.length != 1) {
+ throw new RuntimeException("Must submit exactly one file");
+ }
+ final FormFile file = files[0];
+ try {
+ return AccessController.doPrivileged(new PrivilegedExceptionAction<Response>() {
+
+ @Override
+ public Response run() throws IOException {
+ restore(new ByteArrayInputStream(file.getContent()));
+ return RedirectUtil.createSeeOtherResponse("/admin/backup", uriInfo);
+ }
+ });
+ } catch (PrivilegedActionException ex) {
+ throw ex.getCause();
+ }
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/clerezza/blob/d0f43e94/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/RestorePermission.java
----------------------------------------------------------------------
diff --git a/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/RestorePermission.java b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/RestorePermission.java
new file mode 100644
index 0000000..6080df9
--- /dev/null
+++ b/rdf/web/rdf.web.core/src/main/java/org/apache/clerezza/rdf/web/core/RestorePermission.java
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.clerezza.rdf.web.core;
+
+import org.apache.clerezza.permissiondescriptions.PermissionInfo;
+
+import java.security.Permission;
+
+/**
+ * Permission to restore all graphs provided by TcManager from a backup copy.
+ *
+ * This a very powerfull permission as it allows to write to all graphs.
+ *
+ * @author reto
+ */
+@PermissionInfo(value="Restore Permission", description="Permission " +
+ "to replace all triple collections with the contents of backup file")
+public class RestorePermission extends Permission {
+
+
+ public RestorePermission() {
+ super("Restore permission");
+ }
+ /**
+ *
+ * @param target ignored
+ * @param action ignored
+ */
+ public RestorePermission(String target, String actions) {
+ super("Restore permission");
+ }
+
+ @Override
+ public boolean implies(Permission permission) {
+ return equals(permission);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return getClass().equals(obj.getClass());
+ }
+
+ @Override
+ public int hashCode() {
+ return 77965;
+ }
+
+ @Override
+ public String getActions() {
+ return "";
+ }
+
+}