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/*
* #%L
* EUGene :: EUGene Core
* %%
* Copyright (C) 2004 - 2017 Code Lutin, Ultreia.io
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
package org.nuiton.eugene.writer;
import com.google.common.base.Preconditions;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Default implementation of the {@link ChainedWriterEngine}.
*
* Created: 17 déc. 2009
*
* @author Tony Chemit - [email protected]
* @plexus.component role="org.nuiton.eugene.writer.ChainedWriterEngine" role-hint="default"
* @since 2.0.0
*/
public class DefaultChainedWriterEngine implements ChainedWriterEngine {
/** Logger */
private static final Log log = LogFactory.getLog(DefaultChainedWriterEngine.class);
/** shared configuration */
protected ChainedFileWriterConfiguration configuration;
/** available writers corresponding to the given configuration */
protected Set availableWriters;
/** selected writers obtain while the register phase. */
protected List selectedWriters;
private FileGrabberFromDirectory fileGrabberFromDirectory;
private FileGrabberFromClassPath fileGrabberFromClassPath;
public ChainedFileWriterConfiguration getConfiguration() {
return configuration;
}
@Override
public List getSelectedWriters() {
if (selectedWriters == null) {
checkInit("getSelectedWriters");
selectedWriters = new ArrayList<>();
}
return selectedWriters;
}
@Override
public boolean containsWriter(String inputProtocol) {
for (ChainedFileWriter w : getSelectedWriters()) {
if (inputProtocol.equals(w.getInputProtocol())) {
return true;
}
}
return false;
}
@Override
public Set getAvailableWriters() {
if (availableWriters == null) {
checkInit("getAvailableWriters");
availableWriters = filterWriterForModelType(
getConfiguration().getWriters(),
getConfiguration().getModelType()
);
}
return availableWriters;
}
@Override
public void registerInclude(String include) {
checkInit("registerInclude");
List selectedWriters = getSelectedWriters();
if (log.isDebugEnabled()) {
log.debug(">>>>>>>>>>>>>>>>> [" + include + "]");
log.debug("Will register include " + "[" + include + "]");
log.debug("actual selected writers : " + selectedWriters);
}
ModelFileWriterEntryType selectedType = null;
Matcher matcher = null;
// obtain the good type of entry and the corresponding matcher
for (ModelFileWriterEntryType type :
ModelFileWriterEntryType.values()) {
matcher = type.getMatcher(include);
if (matcher != null) {
// get a matcher
selectedType = type;
break;
}
}
if (selectedType == null) {
// no writer
throw new IllegalArgumentException("could not find a writer for include pattern : " + include);
}
// obtain the writer
ChainedFileWriter writer =
selectedType.getWriter(this, include, matcher);
// create the new entry
ChainedFileWriterEntry writerEntry =
selectedType.newEntry(this, include, matcher, writer);
// register the new entry
writer.addEntry(writerEntry);
if (!selectedWriters.contains(writer)) {
// register the writer as to be used
if (log.isDebugEnabled()) {
log.debug("[" + include + "] Associated with writer " + writer);
}
selectedWriters.add(writer);
}
ChainedFileWriterConfiguration configuration = getConfiguration();
String modelType = configuration.getModelType();
String outpoutProtocol = writer.getOutputProtocol(modelType);
if (outpoutProtocol == null) {
// nothing more to do
if (log.isDebugEnabled()) {
log.debug("<<<<<<<<<<<<<<<<< [" + include + "]");
}
return;
}
// the writer need the includes of another writer
if (log.isDebugEnabled()) {
log.debug("[" + include + "]" + " writer " +
writer.getClass().getSimpleName() +
" require a next writer of protocol " + outpoutProtocol);
}
ChainedFileWriter nextWriter =
((AbstractChainedFileWriter) writer).getNextWriter();
if (nextWriter == null) {
// the next writer was not initialize, just have to add new entry
nextWriter = getWriterForInputProtocol(
getAvailableWriters(),
outpoutProtocol,
modelType
);
if (nextWriter == null) {
throw new IllegalArgumentException(
"could not find a writer for protocole " +
outpoutProtocol + " on model " + modelType);
}
// chain writer
((AbstractChainedFileWriter) writer).setNextWriter(nextWriter);
}
// build the next include to do
String basedirpath = configuration.getBasedir().getAbsolutePath();
String outputpath = writer.getOutputDirectory(
configuration.getOutputDirectory(),
configuration.isTestPhase()).getAbsolutePath();
String path = outputpath.substring(basedirpath.length() + 1);
String newInclude = outpoutProtocol + ":" + path + ":" +
nextWriter.getDefaultIncludes();
registerInclude(newInclude);
if (log.isDebugEnabled()) {
log.debug("<<<<<<<<<<<<<<<<< [" + include + "]");
}
}
@Override
public void clear() {
if (selectedWriters != null) {
selectedWriters.clear();
selectedWriters = null;
}
if (availableWriters != null) {
for (ChainedFileWriter writer : availableWriters) {
writer.clear();
}
availableWriters.clear();
availableWriters = null;
}
configuration = null;
fileGrabberFromDirectory = null;
fileGrabberFromClassPath = null;
}
@Override
public void init(ChainedFileWriterConfiguration configuration) {
Preconditions.checkNotNull(configuration, "Configuration can not be null");
this.configuration = configuration;
fileGrabberFromDirectory = new FileGrabberFromDirectory(configuration);
fileGrabberFromClassPath = new FileGrabberFromClassPath(configuration);
}
@Override
public Set filterWriterForModelType(
Map universe, String modelType) {
Set result = new HashSet<>();
for (ChainedFileWriter w : universe.values()) {
if (w.acceptModel(modelType)) {
if (log.isDebugEnabled()) {
log.debug("writer [" + w + "] accept model " + modelType);
}
result.add(w);
}
}
return result;
}
@Override
public ChainedFileWriter getWriterForInputProtocol(
Set universe,
String inputProtocol,
String modelType) {
for (ChainedFileWriter writer : universe) {
if (inputProtocol.equals(writer.getInputProtocol(modelType))) {
return writer;
}
}
return null;
}
@Override
public ChainedFileWriter getWriterForInclude(
Set universe,
String include,
String modelType) {
for (ChainedFileWriter w : universe) {
if (w.acceptInclude(include)) {
return w;
}
}
return null;
}
@Override
public ChainedFileWriterData getData(ChainedFileWriter writer) throws IOException {
checkInit("getData");
File outputDir = writer.getOutputDirectory(configuration.getOutputDirectory(), configuration.isTestPhase());
if (!outputDir.exists()) {
if (log.isDebugEnabled()) {
log.debug("[" + writer.getInputProtocol() + "] Create output directory " + outputDir);
}
boolean b = outputDir.mkdirs();
if (!b) {
throw new IOException("Could not create directory " + outputDir);
}
}
// split directory and classpath entries
Map> directoryEntries = new HashMap<>();
Map> classpathEntries = new HashMap<>();
for (ChainedFileWriterEntry e : writer.getEntries()) {
Map> currentMap;
if (e.isUseClassPath()) {
currentMap = classpathEntries;
} else {
currentMap = directoryEntries;
}
String input = e.getInputPath();
Set includes = currentMap.get(input);
if (includes == null) {
currentMap.put(input, includes = new LinkedHashSet<>());
}
includes.add(e.getIncludePattern());
}
ChainedFileWriterData result = new ChainedFileWriterData();
result.setFilesByRoot(new HashMap<>());
result.setResourcesByFile(new HashMap<>());
result.setOutputDirectory(outputDir);
File extractDirectory = writer.getExtractDirectory(configuration.getExtractDirectory(),
configuration.isTestPhase());
// search from directory files
grabFiles(extractDirectory, fileGrabberFromDirectory, directoryEntries, result);
// search class-path files
grabFiles(extractDirectory, fileGrabberFromClassPath, classpathEntries, result);
return result;
}
protected void grabFiles(File extractDirectory, FileGrabber grabber,
Map> entries,
ChainedFileWriterData result) throws IOException {
for (Map.Entry> entry : entries.entrySet()) {
String inputDirectory = entry.getKey();
Set includePatterns = entry.getValue();
grabber.addFilesToTreate(extractDirectory, inputDirectory, includePatterns, result);
}
}
protected void checkInit(String method) throws IllegalStateException {
if (configuration == null) {
throw new IllegalStateException("Engine was not initialized! Can not access to " + method +
" before the init method was invoked!");
}
}
public enum ModelFileWriterEntryType {
ONLY_PROTOCOL_PATTERN("^([a-zA-Z]+)$") {
@Override
public ChainedFileWriter getWriter(DefaultChainedWriterEngine engine,
String include,
Matcher matcher) {
ChainedFileWriterConfiguration conf = engine.getConfiguration();
Set universe = engine.getAvailableWriters();
String protocol = matcher.group(1).toLowerCase();
ChainedFileWriter writer = engine.getWriterForInputProtocol(
universe,
protocol,
conf.getModelType()
);
if (writer == null) {
throw new IllegalArgumentException(
"could not find the writer named '" + protocol + "', use one of " + universe);
}
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "writer = (" + writer + ")");
}
return writer;
}
@Override
public ChainedFileWriterEntry newEntry(
DefaultChainedWriterEngine engine,
String include,
Matcher matcher,
ChainedFileWriter writer) {
ChainedFileWriterConfiguration conf = engine.getConfiguration();
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "detected pattern (" + name() + ")");
}
ChainedFileWriterEntry writerEntry = new ChainedFileWriterEntry(
new File(conf.getBasedir(),
conf.isTestPhase() ?
writer.getDefaultTestInputDirectory() :
writer.getDefaultInputDirectory()
).getAbsolutePath(),
writer.getDefaultIncludes()
);
return writerEntry;
}
},
NO_PROTOCOL_PATTERN_WITH_CLASSPATH("^classpath:([^:]+):([^:]+)$") {
@Override
public ChainedFileWriter getWriter(DefaultChainedWriterEngine engine,
String include,
Matcher matcher) {
ChainedFileWriterConfiguration conf = engine.getConfiguration();
Set universe = engine.getAvailableWriters();
String modelType = conf.getModelType();
// with no protocol pattern
// pattern is discover from the includes
// discover the writer from the given pattern
ChainedFileWriter writer = engine.getWriterForInclude(universe, include, modelType);
if (writer == null) {
throw new IllegalArgumentException("could not find a writer for include " + include);
}
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "writer = (" + writer + ")");
}
return writer;
}
@Override
public ChainedFileWriterEntry newEntry(DefaultChainedWriterEngine engine,
String include,
Matcher matcher,
ChainedFileWriter writer) {
// with no protocol pattern
// pattern is discover from the includes
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "detected pattern (" + name() + ")");
}
String inputPath = matcher.group(1);
String includes = matcher.group(2);
ChainedFileWriterEntry writerEntry = new ChainedFileWriterEntry(inputPath, includes, true);
return writerEntry;
}
},
NO_PROTOCOL_PATTERN("^([^:]+):([^:]+)$") {
@Override
public ChainedFileWriter getWriter(DefaultChainedWriterEngine engine,
String include,
Matcher matcher) {
ChainedFileWriterConfiguration conf = engine.getConfiguration();
Set universe = engine.getAvailableWriters();
String modelType = conf.getModelType();
// with no protocol pattern
// pattern is discover from the includes
// discover the writer from the given pattern
ChainedFileWriter writer = engine.getWriterForInclude(universe, include, modelType);
if (writer == null) {
throw new IllegalArgumentException("could not find a writer for include " + include);
}
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "writer = (" + writer + ")");
}
return writer;
}
@Override
public ChainedFileWriterEntry newEntry(DefaultChainedWriterEngine engine,
String include,
Matcher matcher,
ChainedFileWriter writer) {
ChainedFileWriterConfiguration conf = engine.getConfiguration();
// with no protocol pattern
// pattern is discover from the includes
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "detected pattern (" + name() + ")");
}
String inputPath = matcher.group(1);
String includes = matcher.group(2);
ChainedFileWriterEntry writerEntry = new ChainedFileWriterEntry(
new File(conf.getBasedir(), inputPath).getAbsolutePath(),
includes
);
return writerEntry;
}
},
FULL_PATTERN_WITH_CLASSPATH("^classpath:(\\w+):([^:]+):([^:]+)$") {
@Override
public ChainedFileWriter getWriter(DefaultChainedWriterEngine engine,
String include,
Matcher matcher) {
// with full pattern to search in class path (protocol + directory + includes)
// pattern is discover from the includes
ChainedFileWriterConfiguration conf = engine.getConfiguration();
Set universe = engine.getAvailableWriters();
String protocol = matcher.group(1).toLowerCase();
ChainedFileWriter writer = engine.getWriterForInputProtocol(universe, protocol, conf.getModelType());
if (writer == null) {
throw new IllegalArgumentException(
"could not find the writer named '" + protocol + "', use one of " + universe);
}
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "writer = (" + writer + ")");
}
return writer;
}
@Override
public ChainedFileWriterEntry newEntry(DefaultChainedWriterEngine engine,
String include,
Matcher matcher,
ChainedFileWriter writer) {
// with full pattern (protocol + directory + includes)
// pattern is discover from the includes
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "detected pattern (" + name() + ")");
}
String inputPath = matcher.group(2);
String includes = matcher.group(3);
//TODO tchemit 2010-09-22 Should be able to do a pattern research
ChainedFileWriterEntry writerEntry = new ChainedFileWriterEntry(
inputPath,
includes,
true
);
return writerEntry;
}
},
FULL_PATTERN("^(\\w+):([^:]+):([^:]+)$") {
@Override
public ChainedFileWriter getWriter(DefaultChainedWriterEngine engine,
String include,
Matcher matcher) {
// with full pattern (protocol + directory + includes)
// pattern is discover from the includes
ChainedFileWriterConfiguration conf = engine.getConfiguration();
Set universe = engine.getAvailableWriters();
String protocol = matcher.group(1).toLowerCase();
ChainedFileWriter writer = engine.getWriterForInputProtocol(universe, protocol, conf.getModelType());
if (writer == null) {
throw new IllegalArgumentException(
"could not find the writer named '" + protocol + "', use one of " + universe);
}
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "writer = (" + writer + ")");
}
return writer;
}
@Override
public ChainedFileWriterEntry newEntry(DefaultChainedWriterEngine engine,
String include,
Matcher matcher,
ChainedFileWriter writer) {
ChainedFileWriterConfiguration conf = engine.getConfiguration();
// with full pattern (protocol + directory + includes)
// pattern is discover from the includes
if (log.isDebugEnabled()) {
log.debug("[" + include + "] " + "detected pattern (" + name() + ")");
}
String inputPath = matcher.group(2);
String includes = matcher.group(3);
ChainedFileWriterEntry writerEntry = new ChainedFileWriterEntry(
new File(conf.getBasedir(), inputPath).getAbsolutePath(),
includes
);
return writerEntry;
}
};
private final Pattern pattern;
ModelFileWriterEntryType(String pattern) {
this.pattern = Pattern.compile(pattern);
}
public Pattern getPattern() {
return pattern;
}
public Matcher getMatcher(String include) {
Matcher matcher = getPattern().matcher(include);
return matcher.matches() ? matcher : null;
}
public abstract ChainedFileWriterEntry newEntry(
DefaultChainedWriterEngine engine,
String include,
Matcher matcher, ChainedFileWriter writer);
public abstract ChainedFileWriter getWriter(
DefaultChainedWriterEngine engine,
String include,
Matcher matcher);
}
}
