/**
* Copyright 2011-2017 Asakusa Framework Team.
*
* 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.asakusafw.compiler.batch.processor;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.asakusafw.compiler.batch.AbstractWorkflowProcessor;
import com.asakusafw.compiler.batch.WorkDescriptionProcessor;
import com.asakusafw.compiler.batch.Workflow;
import com.asakusafw.compiler.flow.FlowCompilerOptions;
import com.asakusafw.compiler.flow.FlowCompilerOptions.GenericOptionValue;
/**
* Copies dependency libraries into the final artifact.
* @since 0.5.1
* @version 0.8.0
*/
public class DependencyLibrariesProcessor extends AbstractWorkflowProcessor {
static final Logger LOG = LoggerFactory.getLogger(DependencyLibrariesProcessor.class);
/**
* The compiler option whether this feature is enabled or not.
* @since 0.8.0
*/
public static final String KEY_ENABLE = DependencyLibrariesProcessor.class.getName() + ".enabled"; //$NON-NLS-1$
/**
* The library directory path in the target project.
*/
public static final String LIBRARY_DIRECTORY_PATH = "src/main/libs"; //$NON-NLS-1$
/**
* The output directory path in the final artifact.
*/
public static final String OUTPUT_DIRECTORY_PATH = "usr/lib"; //$NON-NLS-1$
@Override
public Collection<Class<? extends WorkDescriptionProcessor<?>>> getDescriptionProcessors() {
List<Class<? extends WorkDescriptionProcessor<?>>> results = new ArrayList<>();
results.add(JobFlowWorkDescriptionProcessor.class);
return results;
}
@Override
public void process(Workflow workflow) throws IOException {
if (isEnabled() == false) {
LOG.debug("Attaching dependency libraries is not enabled"); //$NON-NLS-1$
return;
}
File libraryDirectory = getLibraryDirectory();
LOG.debug("Inspecting library directory: {}", libraryDirectory); //$NON-NLS-1$
if (libraryDirectory.isDirectory() == false) {
LOG.debug("Library directory is not found: {}", libraryDirectory); //$NON-NLS-1$
return;
}
File outputDirectory = new File(
getEnvironment().getConfiguration().getOutputDirectory(),
OUTPUT_DIRECTORY_PATH);
if (outputDirectory.mkdirs() == false && outputDirectory.isDirectory() == false) {
throw new IOException(MessageFormat.format(
Messages.getString("DependencyLibrariesProcessor.errorFailedToCreateOutputDierctory"), //$NON-NLS-1$
outputDirectory.getAbsolutePath()));
}
LOG.debug("Copying library files: {}", libraryDirectory); //$NON-NLS-1$
for (File file : list(libraryDirectory)) {
if (file.isDirectory()) {
LOG.warn(MessageFormat.format(
Messages.getString("DependencyLibrariesProcessor.warnIgnoreNestedInputDirectory"), //$NON-NLS-1$
file.getAbsolutePath()));
} else {
File target = new File(outputDirectory, file.getName());
try {
copyFile(file, target);
} catch (IOException e) {
throw new IOException(MessageFormat.format(
Messages.getString("DependencyLibrariesProcessor.errorFailedToCopyLibrary"), //$NON-NLS-1$
file,
target));
}
}
}
LOG.debug("Finished copying library files: {}", libraryDirectory); //$NON-NLS-1$
}
private static List<File> list(File file) {
return Optional.ofNullable(file.listFiles())
.map(Arrays::asList)
.orElse(Collections.emptyList());
}
private boolean isEnabled() {
FlowCompilerOptions options = getEnvironment().getConfiguration().getFlowCompilerOptions();
GenericOptionValue value = options.getGenericExtraAttribute(KEY_ENABLE, GenericOptionValue.AUTO);
return value != GenericOptionValue.DISABLED;
}
private File getLibraryDirectory() {
return new File(LIBRARY_DIRECTORY_PATH).getAbsoluteFile();
}
private void copyFile(File source, File destination) throws IOException {
LOG.debug("Copying library file: {} -> {}", source, destination); //$NON-NLS-1$
byte[] buf = new byte[1024];
try (InputStream in = new FileInputStream(source);
OutputStream out = new FileOutputStream(destination)) {
while (true) {
int read = in.read(buf);
if (read < 0) {
break;
}
out.write(buf, 0, read);
}
}
}
}