org.ops4j.pax.runner.platform.ZipJavaRunner.java Source code

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Here is the source code for org.ops4j.pax.runner.platform.ZipJavaRunner.java

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/*
 * Copyright 2009 Toni Menzel.
 * Copyright 2009 Alin Dreghiciu.
 *
 * 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 org.ops4j.pax.runner.platform;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.ops4j.io.StreamUtils;

/**
 * Extends {@link ScriptJavaRunner} and in plus zips the cvontent of working directory.
 *
 * @author Toni Menzel (tonit)
 * @author Alin Dreghiciu (adreghiciu@gmail.com)
 * @since 0.20.0, April 27, 2009
 */
public class ZipJavaRunner extends ScriptJavaRunner {

    /**
     * JCL.
     */
    private static final Log LOG = LogFactory.getLog(ZipJavaRunner.class);

    /**
     * {@inheritDoc}
     */
    public void exec(final String[] vmOptions, final String[] classpath, final String mainClass,
            final String[] programOptions, final String javaHome, final File workingDir,
            String[] environmentVariables) throws PlatformException {
        super.exec(vmOptions, classpath, mainClass, programOptions, javaHome, workingDir, environmentVariables);
        LOG.info("Now writing distribution zip..");
        ZipOutputStream dest = null;
        try {
            File destFile = new File("paxrunner-" + workingDir.getName() + ".zip");
            dest = new ZipOutputStream(new FileOutputStream(destFile));
            int baseIdx = workingDir.getCanonicalFile().getParentFile().getCanonicalPath().length() + 1;
            add(baseIdx, workingDir, dest);
            // delete folder:
            workingDir.deleteOnExit();
            LOG.info("Distribution written: " + destFile.getName());
        } catch (FileNotFoundException e) {
            throw new PlatformException(e.getMessage(), e);
        } catch (IOException e) {
            throw new PlatformException(e.getMessage(), e);
        } finally {
            try {
                if (dest != null) {
                    dest.close();
                }
            } catch (IOException e) {
                // quiet.
            }
        }
    }

    /**
     * Adds a file to zip
     *
     * @param baseIdx base index
     * @param file    file to add
     * @param dest    destination zip
     */
    private void add(final int baseIdx, final File file, final ZipOutputStream dest) throws IOException {
        if (file.isFile()) {
            String art = file.getCanonicalPath().substring(baseIdx);
            ZipEntry entry = new ZipEntry(art);
            dest.putNextEntry(entry);
            StreamUtils.copyStream(new FileInputStream(file), dest, false);
        } else if (file.isDirectory()) {
            for (File f : file.listFiles()) {
                add(baseIdx, f, dest);
            }
        }
    }

}