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/*
 * Copyright 2003-2007 the original author or authors.
 *
 * 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.codehaus.groovy.tools;

import java.io.File;

import org.codehaus.groovy.control.CompilationFailedException;
import org.codehaus.groovy.control.CompilationUnit;
import org.codehaus.groovy.control.CompilerConfiguration;
import org.codehaus.groovy.control.SourceUnit;

/**
 *  A convenience front end for getting standard compilations done.
 *  All compile() routines generate classes to the filesystem.
 *
 *  @author Chris Poirier
 *
 *  @version $Id$
 */

public class Compiler {
    // TODO: delete this constant?
    public static final Compiler DEFAULT = new Compiler();
    
    private CompilerConfiguration configuration = null;  // Optional configuration data
    
   /**
    *  Initializes the Compiler with default configuration.
    */
    
    public Compiler()
    {
        configuration = null;
    }
    
    
   /**
    *  Initializes the Compiler with the specified configuration.
    */
    
    public Compiler( CompilerConfiguration configuration )
    {
        this.configuration = configuration;
    }

    
   
   /**
    *  Compiles a single File.
    */
   
    public void compile( File file ) throws CompilationFailedException
    {
        CompilationUnit unit = new CompilationUnit( configuration );
        unit.addSource( file );
        unit.compile();
    }
    
    
    
   /**
    *  Compiles a series of Files.
    */
    
    public void compile( File[] files ) throws CompilationFailedException
    {
        CompilationUnit unit = new CompilationUnit( configuration );
        unit.addSources( files );
        unit.compile();
    }

    
    
   /**
    *  Compiles a series of Files from file names.
    */
    
    public void compile( String[] files ) throws CompilationFailedException
    {
        CompilationUnit unit = new CompilationUnit( configuration );
        unit.addSources( files );
        unit.compile();
    }

    
    
   /**
    *  Compiles a string of code.
    */
    
    public void compile( String name, String code ) throws CompilationFailedException
    {
        CompilationUnit unit = new CompilationUnit( configuration );
        unit.addSource( new SourceUnit(name, code, configuration, unit.getClassLoader(), unit.getErrorCollector()) );
        unit.compile();
    }

}