/*
* 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.sling.installer.factories.deploypck.impl;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.jar.JarInputStream;
import java.util.jar.Manifest;
import org.apache.sling.installer.api.InstallableResource;
import org.apache.sling.installer.api.tasks.InstallTask;
import org.apache.sling.installer.api.tasks.InstallTaskFactory;
import org.apache.sling.installer.api.tasks.RegisteredResource;
import org.apache.sling.installer.api.tasks.ResourceTransformer;
import org.apache.sling.installer.api.tasks.TaskResourceGroup;
import org.apache.sling.installer.api.tasks.TransformationResult;
import org.osgi.framework.Version;
import org.osgi.service.deploymentadmin.DeploymentAdmin;
/**
* This is an extension for the OSGi installer
* It listens for files ending with ".dp" and installs them through
* the deployment package admin.
*/
public class DeploymentPackageInstaller
implements ResourceTransformer, InstallTaskFactory {
public static final String DEPLOYMENTPACKAGE_SYMBOLICMAME = "DeploymentPackage-SymbolicName";
public static final String DEPLOYMENTPACKAGE_VERSION = "DeploymentPackage-Version";
private static final String TYPE_DP = "dp";
private final DeploymentAdmin deploymentAdmin;
public DeploymentPackageInstaller(final DeploymentAdmin dpA) {
this.deploymentAdmin = dpA;
}
/**
* @see org.apache.sling.installer.api.tasks.ResourceTransformer#transform(org.apache.sling.installer.api.tasks.RegisteredResource)
*/
public TransformationResult[] transform(final RegisteredResource resource) {
if ( resource.getType().equals(InstallableResource.TYPE_FILE) ) {
try {
final Manifest m = getManifest(resource.getInputStream());
if (m != null) {
final String sn = m.getMainAttributes().getValue(DEPLOYMENTPACKAGE_SYMBOLICMAME);
if (sn != null) {
final String v = m.getMainAttributes().getValue(DEPLOYMENTPACKAGE_VERSION);
if (v != null) {
final Map<String, Object> attr = new HashMap<String, Object>();
attr.put(DEPLOYMENTPACKAGE_SYMBOLICMAME, sn);
final TransformationResult tr = new TransformationResult();
tr.setId(sn);
tr.setVersion(new Version(v));
tr.setResourceType(TYPE_DP);
tr.setAttributes(attr);
return new TransformationResult[] {tr};
}
}
}
} catch (final IOException ignore) {
// ignore
}
}
return null;
}
/**
* Read the manifest from supplied input stream, which is closed before return.
*/
private Manifest getManifest(final InputStream ins) throws IOException {
Manifest result = null;
if ( ins != null ) {
JarInputStream jis = null;
try {
jis = new JarInputStream(ins);
result= jis.getManifest();
} finally {
// close the jar stream or the inputstream, if the jar
// stream is set, we don't need to close the input stream
// since closing the jar stream closes the input stream
if (jis != null) {
try {
jis.close();
} catch (final IOException ignore) {
}
} else {
try {
ins.close();
} catch (final IOException ignore) {
}
}
}
}
return result;
}
/**
* @see org.apache.sling.installer.api.tasks.InstallTaskFactory#createTask(org.apache.sling.installer.api.tasks.TaskResourceGroup)
*/
public InstallTask createTask(final TaskResourceGroup toActivate) {
if ( toActivate.getActiveResource().getType().equals(TYPE_DP) ) {
return new DeployPckTask(toActivate, this.deploymentAdmin);
}
return null;
}
}