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/*
* Copyright (C) 2009 Jayway AB
* Copyright (C) 2007-2008 JVending Masa
* Copyright (C) 2010 akquinet A.G.
*
* 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.
*/
package com.jayway.maven.plugins.android.phase09package;
import java.io.File;
import java.io.PrintStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.logging.Log;
/**
* This class is a front end on the APKBuilder contained in the
* {@code sdklib.jar}. as there is now easy way to use this jar, it it
* dynamically loaded and reflection is used to delegate the methods.
*/
public class ApkBuilder {
/**
* The ApkBuilder class object.
*/
@SuppressWarnings("rawtypes")
private static Class apkBuilderClass;
/**
* The Mojo logger.
*/
private static Log log;
/**
* Before being able to use the ApkBuilder, an initialization is required.
*
* @param log
* the Mojo Logger
* @param sdkLibs
* the File pointing on {@code sdklib.jar}
* @throws MojoExecutionException
* if the ApkBuilder class cannot be loaded
*/
@SuppressWarnings("unchecked")
public static void initialize(Log log, File sdkLibs)
throws MojoExecutionException {
if (apkBuilderClass != null) {
// Already initialized
return;
}
ApkBuilder.log = log;
// Loads the ApkBuilder class
try {
URLClassLoader child = new URLClassLoader(new URL[] { sdkLibs
.toURI().toURL() }, ApkBuilder.class.getClassLoader());
apkBuilderClass = child
.loadClass("com.android.sdklib.build.ApkBuilder");
} catch (MalformedURLException e) {
// This one cannot happen.
throw new RuntimeException("Cannot create a correct URL from file "
+ sdkLibs.getAbsolutePath());
} catch (ClassNotFoundException e) {
log.error(e);
throw new MojoExecutionException(
"Cannot load 'com.android.sdklib.build.ApkBuilder'");
}
log.debug("ApkBuilder loaded " + apkBuilderClass);
// In order to improve performence and to check that all methods are available
// we cache used methods.
try {
apkBuilderConstructor = apkBuilderClass
.getConstructor(new Class[] { File.class, File.class,
File.class, String.class, PrintStream.class });
setDebugMethod = apkBuilderClass.getMethod("setDebugMode",
new Class[] { Boolean.TYPE });
addResourcesFromJarMethod = apkBuilderClass.getMethod(
"addResourcesFromJar", new Class[] { File.class });
addNativeLibrariesMethod = apkBuilderClass.getMethod(
"addNativeLibraries", new Class[] { File.class, String.class });
addSourceFolderMethod = apkBuilderClass.getMethod(
"addSourceFolder", new Class[] { File.class });
sealApkMethod = apkBuilderClass.getMethod("sealApk", new Class[0]);
getDebugKeyStoreMethod = apkBuilderClass.getMethod("getDebugKeystore", new Class[0]);
} catch (Exception e) {
log.error("Cannot find required method", e);
throw new MojoExecutionException(
"Cannot find the required method", e);
}
}
/**
* The APK Builder.
*/
private Object builder;
/**
* The APKBuilder Constructor Method.
*/
@SuppressWarnings("rawtypes")
private static Constructor apkBuilderConstructor;
/**
* The ApkBuilder.addSourceFolder Method.
*/
private static Method addSourceFolderMethod;
/**
* The ApkBuilder.addResourcesFromJar Method.
*/
private static Method addResourcesFromJarMethod;
/**
* The ApkBuilder.addNativeLibraries Method.
*/
private static Method addNativeLibrariesMethod;
/**
* The ApkBuilder.setDebug Method.
*/
private static Method setDebugMethod;
/**
* The ApkBuilder.sealApk Method.
*/
private static Method sealApkMethod;
/**
* The ApkBuilder.getDebugKeyStore Method.
*/
private static Method getDebugKeyStoreMethod;
/**
* Creates a new APKBuilder. The class must be initialized before calling
* this constructor. This creates a new builder that will create the
* specified output file, using the two mandatory given input files. An
* optional debug keystore can be provided. If set, it is expected that the
* store password is 'android' and the key alias and password are
* 'androiddebugkey' and 'android'.
*
* An optional {@link PrintStream} can also be provided for verbose output.
* If null, there will be no output.
*
* @param apkFile
* the file to create
* @param resFile
* the file representing the packaged resource file.
* @param dexFile
* the file representing the dex file. This can be null for apk
* with no code.
* @param signed
* if the APK must be signed using the debug store
* @param verboseStream
* the stream to which verbose output should go. If null, verbose
* mode is not enabled.
* @throws MojoExecutionException
* if the class was not initialized, or if the reflective calls
* failed.
*/
public ApkBuilder(File apkFile, File resFile, File dexFile, boolean signed,
PrintStream verboseStream) throws MojoExecutionException {
if (apkBuilderClass == null) {
throw new MojoExecutionException(
"The APKBuilder class was not initialized");
}
try {
// We need to first get the debug key store
Object debugKeyStore = getDebugKeyStoreMethod.invoke(null, new Object[0]);
builder = apkBuilderConstructor.newInstance(new Object[] { apkFile, resFile,
dexFile, (signed) ? debugKeyStore : null, verboseStream });
} catch (InvocationTargetException e) {
log.error("Cannot create the APKBuilder object", e.getCause());
throw new MojoExecutionException(
"Cannot create the APKBuilder object", e.getCause());
} catch (Exception e) {
log.error("Cannot create the APKBuilder object", e);
throw new MojoExecutionException(
"Cannot create the APKBuilder object", e);
}
}
/**
* Enables / Disables the debug mode.
*
* @param debug
* does the debug mode need to be enabled?
* @throws MojoExecutionException
* if the debug mode cannot be set
*/
public void setDebugMode(boolean debug) throws MojoExecutionException {
try {
setDebugMethod.invoke(builder,
new Object[] { debug });
} catch (InvocationTargetException e) {
log.error("Cannot set the debug mode", e.getCause());
throw new MojoExecutionException(
"Cannot create the APKBuilder object", e.getCause());
} catch (Exception e) {
log.error("Cannot set the debug mode", e);
throw new MojoExecutionException(
"Cannot create the APKBuilder object", e);
}
}
/**
* Adds the resources from a source folder to the APK.
*
* @param sourceFolder
* the source folder
* @throws MojoExecutionException
* if the source folder cannot be added
*/
public void addSourceFolder(File sourceFolder)
throws MojoExecutionException {
try {
addSourceFolderMethod
.invoke(builder, new Object[] { sourceFolder });
} catch (InvocationTargetException e) {
log.error("Cannot add source folder", e.getCause());
throw new MojoExecutionException("Cannot add source folder",
e.getCause());
} catch (Exception e) {
log.error("Cannot add source folder", e);
throw new MojoExecutionException("Cannot add source folder", e);
}
}
/**
* Adds the resources from a jar file.
*
* @param jarFile
* the jar File.
* @throws MojoExecutionException
* if the resources cannot be added
*/
public void addResourcesFromJar(File jarFile) throws MojoExecutionException {
try {
addResourcesFromJarMethod.invoke(builder, new Object[] { jarFile });
} catch (InvocationTargetException e) {
log.error("Cannot add resources from jar", e.getCause());
throw new MojoExecutionException("Cannot add resources from jar",
e.getCause());
} catch (Exception e) {
log.error("Cannot add source folder", e);
throw new MojoExecutionException("Cannot add resources from jar", e);
}
}
/**
* Adds the native libraries from the top native folder. The content of this
* folder must be the various ABI folders.
*
* This may or may not copy gdbserver into the apk based on whether the
* debug mode is set.
*
* @param nativeFolder
* the native folder.
* @param abiFilter
* an optional filter. If not null, then only the matching ABI is
* included in the final archive
* @throws MojoExecutionException if the library cannot be added.
*/
public void addNativeLibraries(File nativeFolder, String abiFilter) throws MojoExecutionException {
try {
addNativeLibrariesMethod.invoke(builder, new Object[] { nativeFolder, abiFilter });
} catch (InvocationTargetException e) {
log.error("Cannot add native libraries", e.getCause());
throw new MojoExecutionException("Cannot add native libraries",
e.getCause());
} catch (Exception e) {
log.error("Cannot add native libraries", e);
throw new MojoExecutionException("Cannot add native libraries", e);
}
}
/**
* Seals the APK. Once called the APK cannot be modified.
* @throws MojoExecutionException if the APK cannot be sealed
*/
public void sealApk() throws MojoExecutionException {
try {
sealApkMethod.invoke(builder, new Object[0]);
} catch (InvocationTargetException e) {
log.error("Cannot seal the APK", e.getCause());
throw new MojoExecutionException("Cannot seal the APK",
e.getCause());
} catch (Exception e) {
log.error("Cannot seal the APK", e);
throw new MojoExecutionException("Cannot seal the APK", e);
}
}
}
