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Posted to pr@jena.apache.org by GitBox <gi...@apache.org> on 2020/10/09 15:26:48 UTC
[GitHub] [jena] afs opened a new pull request #808: JENA-1978: Fuseki examples
afs opened a new pull request #808:
URL: https://github.com/apache/jena/pull/808
Includes JENA-1976 (dft CORS to on)
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[GitHub] [jena] afs merged pull request #808: JENA-1978: Fuseki examples
Posted by GitBox <gi...@apache.org>.
afs merged pull request #808:
URL: https://github.com/apache/jena/pull/808
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[GitHub] [jena] kinow commented on a change in pull request #808: JENA-1978: Fuseki examples
Posted by GitBox <gi...@apache.org>.
kinow commented on a change in pull request #808:
URL: https://github.com/apache/jena/pull/808#discussion_r502737676
##########
File path: jena-fuseki2/jena-fuseki-main/src/test/java/org/apache/jena/fuseki/main/examples/ExFuseki_4_CustomOperation_External.java
##########
@@ -0,0 +1,79 @@
+/*
+ * 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.jena.fuseki.main.examples;
+
+import java.util.ServiceLoader;
+
+import org.apache.jena.fuseki.main.FusekiServer;
+import org.apache.jena.fuseki.system.FusekiLogging;
+import org.apache.jena.riot.web.HttpOp;
+import org.apache.jena.sparql.core.DatasetGraphFactory;
+import org.apache.jena.sys.JenaSystem;
+
+/**
+ * Example of adding a new operation to a Fuseki server by registering it with the
+ * global Fuseki registries.
+ *
+ * The custom operation is loaded using {@link ServiceLoader} as shown in
+ * {@link InitFusekiCustomOperation}.
+ *
+ * Doing this, adding the jar to the classpath, including the {@link ServiceLoader}
+ * setup, will automatically add it to the server.
+ * <p>
+ * See <a href="https://jena.apache.org/documentation/notes/jena-repack.html">Repacking Jena jars</a>.
+ * <p>
+ * See <a href="https://jena.apache.org/documentation/notes/system-initialization.html">System Initialization</a>
+ */
+public class ExFuseki_4_CustomOperation_External {
+
+ static {
+ JenaSystem.init();
+ FusekiLogging.setLogging();
+ }
+
+ // Example usage.
+ public static void main(String...args) {
+
+ // Imitate Service loader behaviour.
+ new InitFusekiCustomOperation().start();
+
+
+ // Standard Fuseki startup by commandline.
+ // /ds/extra will be added because InitFusekiCustomOperation adds it to the default services.
+
+ // ThreadLib.async(()->FusekiMainCmd.main("--port=3230", "--mem", "/ds"));
+ //Lib.sleep(1000);
+ // Same as the above command line except it does not block the thread (which is why the ThreadLib.async is added).
+ FusekiServer.create().port(3230).add("/ds", DatasetGraphFactory.createTxnMem()).build().start();
+
+ callOperation("extra");
+ System.exit(0);
+ }
+
+ private static void callOperation(String name) {
+ String x = HttpOp.execHttpGetString("http://localhost:3230/ds/"+name);
+ if ( x == null ) {
+ System.out.println("Not found : <null>");
+ } else {
+ System.out.print(x);
+ if ( ! x.endsWith("\n") )
+ System.out.println();
+ }
+ }
+}
Review comment:
Missing newline
##########
File path: jena-fuseki2/jena-fuseki-main/src/test/java/org/apache/jena/fuseki/main/examples/InitFusekiCustomOperation.java
##########
@@ -0,0 +1,86 @@
+/*
+ * 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.jena.fuseki.main.examples;
+
+import java.io.IOException;
+
+import org.apache.jena.atlas.lib.DateTimeUtils;
+import org.apache.jena.fuseki.Fuseki;
+import org.apache.jena.fuseki.FusekiException;
+import org.apache.jena.fuseki.build.FusekiExt;
+import org.apache.jena.fuseki.server.Operation;
+import org.apache.jena.fuseki.servlets.ActionService;
+import org.apache.jena.fuseki.servlets.HttpAction;
+import org.apache.jena.riot.WebContent;
+import org.apache.jena.sys.JenaSubsystemLifecycle;
+import org.apache.jena.web.HttpSC;
+
+/**
+* See https://docs.oracle.com/javase/8/docs/api/java/util/ServiceLoader.html
+*
+* Example: the file has one line which is the full package, class name.
+* Build: src/main/resources/META-INF/services/org.apache.jena.sys.JenaSubsystemLifecycle
+* ----
+* fuseki.examples.Ex_FusekiCustomOperation.InitFusekiCustomOperation
+* ----
+*/
+public class InitFusekiCustomOperation implements JenaSubsystemLifecycle {
+
+ public InitFusekiCustomOperation() {}
+
+ @Override
+ public void start() {
+ // Can use Fuseki server logging.
+ Fuseki.configLog.info("Add custom operation");
+ System.err.println("**** Fuseki extension ****");
+ Operation op = Operation.alloc("http://example/extra-service", "extra-service", "Test");
+ FusekiExt.registerOperation(op, new MyCustomService());
+ FusekiExt.addDefaultEndpoint(op, "extra");
+ }
+
+ @Override
+ public void stop() {}
+
+ @Override
+ public int level() { return 1000; }
+
+ // For convenience of the example - include the implementation of the custom operation in the same file.
+ private static class MyCustomService extends ActionService {
+
+ // Choose.
+ @Override
+ public void execGet(HttpAction action) {
+ executeLifecycle(action);
+ }
+
+ @Override
+ public void validate(HttpAction action) { }
+
+ @Override
+ public void execute(HttpAction action) {
+ action.response.setStatus(HttpSC.OK_200);
+ action.response.setContentType(WebContent.contentTypeTextPlain);
+ try {
+ action.response.getOutputStream().print("** GET ** "+DateTimeUtils.nowAsXSDDateTimeString());
+ } catch (IOException e) {
+ throw new FusekiException(e);
+ }
+ }
+ }
+}
Review comment:
Missing newline
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[GitHub] [jena] kinow commented on a change in pull request #808: JENA-1978: Fuseki examples
Posted by GitBox <gi...@apache.org>.
kinow commented on a change in pull request #808:
URL: https://github.com/apache/jena/pull/808#discussion_r502661977
##########
File path: jena-fuseki2/jena-fuseki-main/src/main/java/org/apache/jena/fuseki/main/cmds/FusekiMain.java
##########
@@ -82,8 +82,9 @@
private static ArgDecl argConfig = new ArgDecl(ArgDecl.HasValue, "config", "conf");
private static ArgDecl argGZip = new ArgDecl(ArgDecl.HasValue, "gzip");
private static ArgDecl argBase = new ArgDecl(ArgDecl.HasValue, "base", "files");
-
+
Review comment:
Extra spaces
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