org.codehaus.mojo.javacc.JJTree Maven / Gradle / Ivy
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Maven 3 Plugin for processing JavaCC grammar files.
package org.codehaus.mojo.javacc;
/*
* 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.
*/
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.codehaus.plexus.util.FileUtils;
import org.codehaus.plexus.util.StringUtils;
/**
* Provides a facade for the mojos to invoke JJTree.
*
* @author Benjamin Bentmann
* @version $Id: JJTree.java 10603 2009-09-06 15:05:08Z bentmann $
* @see JJTree
* Reference
*/
class JJTree extends ToolFacade
{
/**
* The input grammar.
*/
private File inputFile;
/**
* The option OUTPUT_DIRECTORY.
*/
private File outputDirectory;
/**
* The option GRAMMAR_ENCODING.
*/
private String grammarEncoding;
/**
* The option JDK_VERSION.
*/
private String jdkVersion;
/**
* The option STATIC.
*/
private Boolean isStatic;
/**
* The option BUILD_NODE_FILES.
*/
private Boolean buildNodeFiles;
/**
* The option MULTI.
*/
private Boolean multi;
/**
* The option NODE_DEFAULT_VOID.
*/
private Boolean nodeDefaultVoid;
/**
* The option NODE_CLASS.
*/
private String nodeClass;
/**
* The option NODE_FACTORY.
*/
private String nodeFactory;
/**
* The option NODE_PACKAGE.
*/
private String nodePackage;
/**
* The option NODE_PREFIX.
*/
private String nodePrefix;
/**
* The option NODE_SCOPE_HOOK.
*/
private Boolean nodeScopeHook;
/**
* The option NODE_USES_PARSER.
*/
private Boolean nodeUsesParser;
/**
* The option TRACK_TOKENS.
*/
private Boolean trackTokens;
/**
* The option VISITOR.
*/
private Boolean visitor;
/**
* The option VISITOR_DATA_TYPE.
*/
private String visitorDataType;
/**
* The option VISITOR_RETURN_TYPE.
*/
private String visitorReturnType;
/**
* The option VISITOR_EXCEPTION.
*/
private String visitorException;
/**
* Sets the absolute path to the grammar file to pass into JJTree for
* preprocessing.
*
* @param value
* The absolute path to the grammar file to pass into JJTree for
* preprocessing.
*/
public void setInputFile (final File value)
{
if (value != null && !value.isAbsolute ())
{
throw new IllegalArgumentException ("path is not absolute: " + value);
}
this.inputFile = value;
}
/**
* Sets the absolute path to the output directory.
*
* @param value
* The absolute path to the output directory for the generated grammar
* file. If this directory does not exist yet, it is created. Note that
* this path should already include the desired package hierarchy
* because JJTree will not append the required sub directories
* automatically.
*/
public void setOutputDirectory (final File value)
{
if (value != null && !value.isAbsolute ())
{
throw new IllegalArgumentException ("path is not absolute: " + value);
}
this.outputDirectory = value;
}
/**
* Gets the absolute path to the enhanced grammar file generated by JJTree.
*
* @return The absolute path to the enhanced grammar file generated by JJTree
* or null if either the input file or the output
* directory have not been set.
*/
public File getOutputFile ()
{
File outputFile = null;
if (this.outputDirectory != null && this.inputFile != null)
{
final String fileName = FileUtils.removeExtension (this.inputFile.getName ()) + ".jj";
outputFile = new File (this.outputDirectory, fileName);
}
return outputFile;
}
/**
* Sets the option GRAMMAR_ENCODING.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setGrammarEncoding (final String value)
{
this.grammarEncoding = value;
}
/**
* Sets the option JDK_VERSION.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setJdkVersion (final String value)
{
this.jdkVersion = value;
}
/**
* Sets the option STATIC.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setStatic (final Boolean value)
{
this.isStatic = value;
}
/**
* Sets the option value BUILD_NODE_FILES.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setBuildNodeFiles (final Boolean value)
{
this.buildNodeFiles = value;
}
/**
* Sets the option value MULTI.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setMulti (final Boolean value)
{
this.multi = value;
}
/**
* Sets the option value NODE_DEFAULT_VOID.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setNodeDefaultVoid (final Boolean value)
{
this.nodeDefaultVoid = value;
}
/**
* Sets the option value NODE_CLASS.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setNodeClass (final String value)
{
this.nodeClass = value;
}
/**
* Sets the option value NODE_FACTORY.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setNodeFactory (final String value)
{
this.nodeFactory = value;
}
/**
* Sets the option value NODE_PACKAGE.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setNodePackage (final String value)
{
this.nodePackage = value;
}
/**
* Sets the option value NODE_PREFIX.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setNodePrefix (final String value)
{
this.nodePrefix = value;
}
/**
* Sets the option value NODE_SCOPE_HOOK.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setNodeScopeHook (final Boolean value)
{
this.nodeScopeHook = value;
}
/**
* Sets the option value NODE_USES_PARSER.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setNodeUsesParser (final Boolean value)
{
this.nodeUsesParser = value;
}
/**
* Sets the option value TRACK_TOKENS.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setTrackTokens (final Boolean value)
{
this.trackTokens = value;
}
/**
* Sets the option value VISITOR.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setVisitor (final Boolean value)
{
this.visitor = value;
}
/**
* Sets the option value VISITOR_DATA_TYPE.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setVisitorDataType (final String value)
{
this.visitorDataType = value;
}
/**
* Sets the option value VISITOR_RETURN_TYPE.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setVisitorReturnType (final String value)
{
this.visitorReturnType = value;
}
/**
* Sets the option value VISITOR_EXCEPTION.
*
* @param value
* The option value, may be null to use the value provided
* in the grammar or the default.
*/
public void setVisitorException (final String value)
{
this.visitorException = value;
}
/**
* {@inheritDoc}
*/
@Override
protected int execute () throws Exception
{
final String [] args = generateArguments ();
if (this.outputDirectory != null && !this.outputDirectory.exists ())
{
this.outputDirectory.mkdirs ();
}
final org.javacc.jjtree.JJTree jjtree = new org.javacc.jjtree.JJTree ();
return jjtree.main (args);
}
/**
* Assembles the command line arguments for the invocation of JJTree according
* to the configuration.
*
* Note: To prevent conflicts with JavaCC options that might
* be set directly in the grammar file, only those parameters that have been
* explicitly set are passed on the command line.
*
* @return A string array that represents the arguments to use for JJTree.
*/
private String [] generateArguments ()
{
final List argsList = new ArrayList ();
if (StringUtils.isNotEmpty (this.grammarEncoding))
{
argsList.add ("-GRAMMAR_ENCODING=" + this.grammarEncoding);
}
if (StringUtils.isNotEmpty (jdkVersion))
{
argsList.add ("-JDK_VERSION=" + this.jdkVersion);
}
if (this.buildNodeFiles != null)
{
argsList.add ("-BUILD_NODE_FILES=" + this.buildNodeFiles);
}
if (this.multi != null)
{
argsList.add ("-MULTI=" + this.multi);
}
if (this.nodeDefaultVoid != null)
{
argsList.add ("-NODE_DEFAULT_VOID=" + this.nodeDefaultVoid);
}
if (StringUtils.isNotEmpty (this.nodeClass))
{
argsList.add ("-NODE_CLASS=" + this.nodeClass);
}
if (StringUtils.isNotEmpty (this.nodeFactory))
{
argsList.add ("-NODE_FACTORY=" + this.nodeFactory);
}
if (StringUtils.isNotEmpty (this.nodePackage))
{
argsList.add ("-NODE_PACKAGE=" + this.nodePackage);
}
if (StringUtils.isNotEmpty (this.nodePrefix))
{
argsList.add ("-NODE_PREFIX=" + this.nodePrefix);
}
if (this.nodeScopeHook != null)
{
argsList.add ("-NODE_SCOPE_HOOK=" + this.nodeScopeHook);
}
if (this.nodeUsesParser != null)
{
argsList.add ("-NODE_USES_PARSER=" + this.nodeUsesParser);
}
if (this.isStatic != null)
{
argsList.add ("-STATIC=" + this.isStatic);
}
if (this.trackTokens != null)
{
argsList.add ("-TRACK_TOKENS=" + this.trackTokens);
}
if (this.visitor != null)
{
argsList.add ("-VISITOR=" + this.visitor);
}
if (StringUtils.isNotEmpty (this.visitorDataType))
{
argsList.add ("-VISITOR_DATA_TYPE=" + this.visitorDataType);
}
if (StringUtils.isNotEmpty (this.visitorReturnType))
{
argsList.add ("-VISITOR_RETURN_TYPE=" + this.visitorReturnType);
}
if (StringUtils.isNotEmpty (this.visitorException))
{
argsList.add ("-VISITOR_EXCEPTION=" + this.visitorException);
}
if (this.outputDirectory != null)
{
argsList.add ("-OUTPUT_DIRECTORY=" + this.outputDirectory.getAbsolutePath ());
}
if (this.inputFile != null)
{
argsList.add (this.inputFile.getAbsolutePath ());
}
return argsList.toArray (new String [argsList.size ()]);
}
/**
* Gets a string representation of the command line arguments.
*
* @return A string representation of the command line arguments.
*/
@Override
public String toString ()
{
return Arrays.asList (generateArguments ()).toString ();
}
}