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Posted to commits@servicemix.apache.org by gn...@apache.org on 2009/02/27 17:08:37 UTC

svn commit: r748569 - in /servicemix/smx4/kernel/trunk/gshell/gshell-features: ./ src/main/java/org/apache/servicemix/kernel/gshell/features/internal/ src/main/resources/META-INF/spring/

Author: gnodet
Date: Fri Feb 27 16:08:36 2009
New Revision: 748569

URL: http://svn.apache.org/viewvc?rev=748569&view=rev
Log:
SMX4KNL-214: Hot deployment of features through the deploy folder

Added:
    servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeatureDeploymentListener.java
Modified:
    servicemix/smx4/kernel/trunk/gshell/gshell-features/pom.xml
    servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeaturesServiceImpl.java
    servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/resources/META-INF/spring/gshell-features.xml

Modified: servicemix/smx4/kernel/trunk/gshell/gshell-features/pom.xml
URL: http://svn.apache.org/viewvc/servicemix/smx4/kernel/trunk/gshell/gshell-features/pom.xml?rev=748569&r1=748568&r2=748569&view=diff
==============================================================================
--- servicemix/smx4/kernel/trunk/gshell/gshell-features/pom.xml (original)
+++ servicemix/smx4/kernel/trunk/gshell/gshell-features/pom.xml Fri Feb 27 16:08:36 2009
@@ -66,6 +66,11 @@
         </dependency>
 
         <dependency>
+            <groupId>org.apache.servicemix.kernel</groupId>
+            <artifactId>org.apache.servicemix.kernel.filemonitor</artifactId>
+        </dependency>
+        
+        <dependency>
             <groupId>org.springframework.osgi</groupId>
             <artifactId>spring-osgi-core</artifactId>
         </dependency>

Added: servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeatureDeploymentListener.java
URL: http://svn.apache.org/viewvc/servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeatureDeploymentListener.java?rev=748569&view=auto
==============================================================================
--- servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeatureDeploymentListener.java (added)
+++ servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeatureDeploymentListener.java Fri Feb 27 16:08:36 2009
@@ -0,0 +1,267 @@
+/*
+ * 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.servicemix.kernel.gshell.features.internal;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.OutputStream;
+import java.io.IOException;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import java.util.jar.Manifest;
+import java.util.jar.JarOutputStream;
+import java.util.jar.JarFile;
+import java.util.zip.ZipEntry;
+import java.util.Enumeration;
+import java.net.URL;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.DocumentBuilder;
+
+import org.w3c.dom.Document;
+
+import org.apache.servicemix.kernel.filemonitor.DeploymentListener;
+import org.apache.servicemix.kernel.gshell.features.Feature;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.osgi.framework.SynchronousBundleListener;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleEvent;
+import org.osgi.framework.Constants;
+import org.osgi.framework.BundleContext;
+import org.springframework.osgi.context.BundleContextAware;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.DisposableBean;
+
+/**
+ * A deployment listener able to hot deploy a feature descriptor
+ */
+public class FeatureDeploymentListener implements DeploymentListener, SynchronousBundleListener, BundleContextAware,
+                                                        InitializingBean, DisposableBean {
+
+    public static final String FEATURE_PATH = "org.apache.servicemix.kernel.gshell.features";
+
+    private static final Log LOGGER = LogFactory.getLog(FeatureDeploymentListener.class);
+
+    private DocumentBuilderFactory dbf;
+    private FeaturesServiceImpl featuresService;
+    private BundleContext bundleContext;
+
+    public void setFeaturesService(FeaturesServiceImpl featuresService) {
+        this.featuresService = featuresService;
+    }
+
+    public FeaturesServiceImpl getFeaturesService() {
+        return featuresService;
+    }
+
+    public BundleContext getBundleContext() {
+        return bundleContext;
+    }
+
+    public void setBundleContext(BundleContext bundleContext) {
+        this.bundleContext = bundleContext;
+    }
+
+    public void afterPropertiesSet() throws Exception {
+        bundleContext.addBundleListener(this);
+        for (Bundle bundle : bundleContext.getBundles()) {
+            bundleChanged(new BundleEvent(BundleEvent.INSTALLED, bundle));
+        }
+    }
+
+    public void destroy() throws Exception {
+        bundleContext.removeBundleListener(this);
+    }
+
+    public boolean canHandle(File artifact) {
+        try {
+            if (artifact.isFile() && artifact.getName().endsWith(".xml")) {
+                Document doc = parse(artifact);
+                String name = doc.getDocumentElement().getLocalName();
+                String uri  = doc.getDocumentElement().getNamespaceURI();
+                if ("features".equals(name) && (uri == null || "".equals(uri))) {
+                    return true;
+                }
+            }
+        } catch (Exception e) {
+            LOGGER.error("Unable to parse deployed file " + artifact.getAbsolutePath(), e);
+        }
+        return false;
+    }
+
+    public File handle(File artifact, File tmpDir) {
+        // We can't really install the feature right now and just return nothing.
+        // We would not be aware of the fact that the bundle has been uninstalled
+        // and therefore require the feature to be uninstalled.
+        // So instead, create a fake bundle with the file inside, which will be listened by
+        // this deployer: installation / uninstallation of the feature will be done
+        // while the bundle is installed / uninstalled.
+        try {
+            File destFile = new File(tmpDir, artifact.getName() + ".jar");
+            OutputStream os = new BufferedOutputStream(new FileOutputStream(destFile));
+
+            String name = artifact.getCanonicalPath();
+            int idx = name.lastIndexOf('/');
+            if (idx >= 0) {
+                name = name.substring(idx + 1);
+            }
+            String[] str = extractNameVersionType(name);
+            // Create manifest
+            Manifest m = new Manifest();
+            m.getMainAttributes().putValue("Manifest-Version", "2");
+            m.getMainAttributes().putValue(Constants.BUNDLE_MANIFESTVERSION, "2");
+            m.getMainAttributes().putValue(Constants.BUNDLE_SYMBOLICNAME, str[0]);
+            m.getMainAttributes().putValue(Constants.BUNDLE_VERSION, str[1]);
+            // Put content
+            JarOutputStream out = new JarOutputStream(os);
+            ZipEntry e = new ZipEntry(JarFile.MANIFEST_NAME);
+            out.putNextEntry(e);
+            m.write(out);
+            out.closeEntry();
+            e = new ZipEntry("META-INF/");
+            out.putNextEntry(e);
+            e = new ZipEntry("META-INF/" + FEATURE_PATH + "/");
+            out.putNextEntry(e);
+            out.closeEntry();
+            e = new ZipEntry("META-INF/" + FEATURE_PATH + "/" + name);
+            out.putNextEntry(e);
+            InputStream fis = new BufferedInputStream(new FileInputStream(artifact));
+            copyInputStream(fis, out);
+            fis.close();
+            out.closeEntry();
+            out.close();
+            os.close();
+            return destFile;
+        } catch (Exception e) {
+            LOGGER.error("Unable to build spring application bundle", e);
+            return null;
+        }
+    }
+
+    public void bundleChanged(BundleEvent bundleEvent) {
+        try {
+            Bundle bundle = bundleEvent.getBundle();
+            if (bundleEvent.getType() == BundleEvent.INSTALLED) {
+                Enumeration featuresUrlEnumeration = bundle.findEntries("/META-INF/" + FEATURE_PATH + "/", "*.xml", false);
+                while (featuresUrlEnumeration != null && featuresUrlEnumeration.hasMoreElements()) {
+                    URL url = (URL) featuresUrlEnumeration.nextElement();
+                    RepositoryImpl repo = featuresService.internalAddRepository(url.toURI());
+                    for (Feature f : repo.getFeatures()) {
+                        featuresService.installFeature(f.getName(), f.getVersion());
+                    }
+                    featuresService.internalRemoveRepository(url.toURI());
+                }
+            } else if (bundleEvent.getType() == BundleEvent.UNINSTALLED) {
+                Enumeration featuresUrlEnumeration = bundle.findEntries("/META-INF/" + FEATURE_PATH + "/", "*.xml", false);
+                while (featuresUrlEnumeration != null && featuresUrlEnumeration.hasMoreElements()) {
+                    URL url = (URL) featuresUrlEnumeration.nextElement();
+                    RepositoryImpl repo = featuresService.internalAddRepository(url.toURI());
+                    for (Feature f : repo.getFeatures()) {
+                        featuresService.uninstallFeature(f.getName(), f.getVersion());
+                    }
+                    featuresService.internalRemoveRepository(url.toURI());
+                }
+            }
+        } catch (Exception e) {
+            LOGGER.error("Unable to install / uninstall feature", e);
+        }
+    }
+
+    protected Document parse(File artifact) throws Exception {
+        if (dbf == null) {
+            dbf = DocumentBuilderFactory.newInstance();
+            dbf.setNamespaceAware(true);
+        }
+        DocumentBuilder db = dbf.newDocumentBuilder();
+        return db.parse(artifact);
+    }
+
+    private static void copyInputStream(InputStream in, OutputStream out) throws IOException {
+        byte[] buffer = new byte[8192];
+        int len = in.read(buffer);
+        while (len >= 0) {
+            out.write(buffer, 0, len);
+            len = in.read(buffer);
+        }
+    }
+    private static final String DEFAULT_VERSION = "0.0.0";
+
+    private static final Pattern ARTIFACT_MATCHER = Pattern.compile("(.+)(?:-(\\d+)(?:\\.(\\d+)(?:\\.(\\d+))?)?(?:[^a-zA-Z0-9](.*))?)(?:\\.([^\\.]+))", Pattern.DOTALL);
+    private static final Pattern FUZZY_MODIFIDER = Pattern.compile("(?:\\d+[.-])*(.*)", Pattern.DOTALL);
+
+    public static String[] extractNameVersionType(String url) {
+        Matcher m = ARTIFACT_MATCHER.matcher(url);
+        if (!m.matches()) {
+            return new String[] { url, DEFAULT_VERSION };
+        }
+        else {
+            //System.err.println(m.groupCount());
+            //for (int i = 1; i <= m.groupCount(); i++) {
+            //    System.err.println("Group " + i + ": " + m.group(i));
+            //}
+
+            StringBuffer v = new StringBuffer();
+            String d1 = m.group(1);
+            String d2 = m.group(2);
+            String d3 = m.group(3);
+            String d4 = m.group(4);
+            String d5 = m.group(5);
+            String d6 = m.group(6);
+            if (d2 != null) {
+                v.append(d2);
+                if (d3 != null) {
+                    v.append('.');
+                    v.append(d3);
+                    if (d4 != null) {
+                        v.append('.');
+                        v.append(d4);
+                        if (d5 != null) {
+                            v.append(".");
+                            cleanupModifier(v, d5);
+                        }
+                    } else if (d5 != null) {
+                        v.append(".0.");
+                        cleanupModifier(v, d5);
+                    }
+                } else if (d5 != null) {
+                    v.append(".0.0.");
+                    cleanupModifier(v, d5);
+                }
+            }
+            return new String[] { d1, v.toString(), d6 };
+        }
+    }
+
+    private static void cleanupModifier(StringBuffer result, String modifier) {
+        Matcher m = FUZZY_MODIFIDER.matcher(modifier);
+        if (m.matches()) {
+            modifier = m.group(1);
+        }
+        for (int i = 0; i < modifier.length(); i++) {
+            char c = modifier.charAt(i);
+            if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == '-') {
+                result.append(c);
+            }
+        }
+    }
+
+}

Modified: servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeaturesServiceImpl.java
URL: http://svn.apache.org/viewvc/servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeaturesServiceImpl.java?rev=748569&r1=748568&r2=748569&view=diff
==============================================================================
--- servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeaturesServiceImpl.java (original)
+++ servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeaturesServiceImpl.java Fri Feb 27 16:08:36 2009
@@ -126,11 +126,12 @@
         }
     }
 
-    protected void internalAddRepository(URI uri) throws Exception {
+    protected RepositoryImpl internalAddRepository(URI uri) throws Exception {
         RepositoryImpl repo = new RepositoryImpl(uri);
         repositories.put(uri, repo);
         featuresRegistry.register(repo);
         features = null;
+        return repo;
     }
 
     public void removeRepository(URI uri) {

Modified: servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/resources/META-INF/spring/gshell-features.xml
URL: http://svn.apache.org/viewvc/servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/resources/META-INF/spring/gshell-features.xml?rev=748569&r1=748568&r2=748569&view=diff
==============================================================================
--- servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/resources/META-INF/spring/gshell-features.xml (original)
+++ servicemix/smx4/kernel/trunk/gshell/gshell-features/src/main/resources/META-INF/spring/gshell-features.xml Fri Feb 27 16:08:36 2009
@@ -72,6 +72,10 @@
         <property name="featuresServiceRegistry" ref="featureServiceRegistry" />
     </bean>
 
+    <bean id="featureDeploymentListener" class="org.apache.servicemix.kernel.gshell.features.internal.FeatureDeploymentListener">
+        <property name="featuresService" ref="featuresService" />
+    </bean>
+
     <bean id="namingStrategy" class="org.apache.servicemix.kernel.gshell.features.management.DefaultNamingStrategy">
         <property name="jmxDomainName" value="org.apache.servicemix" />
     </bean>
@@ -92,6 +96,8 @@
 
     <osgi:service ref="featuresService" interface="org.apache.servicemix.kernel.gshell.features.FeaturesService" />
 
+    <osgi:service ref="featureDeploymentListener" interface="org.apache.servicemix.kernel.filemonitor.DeploymentListener" />
+
     <osgix:cm-properties id="cmProps" persistent-id="org.apache.servicemix.features">
         <prop key="featuresRepositories"></prop>
         <prop key="featuresBoot"></prop>