/*
 * FindBugs - Find Bugs in Java programs
 * Copyright (C) 2003-2007 University of Maryland
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.umd.cs.findbugs.anttask;

import java.io.File;
import java.util.LinkedList;
import java.util.List;

import org.apache.tools.ant.BuildException;

/**
 * Ant task to create/update a bug history database.
 * 
 * @author David Hovemeyer
 */
public class ComputeBugHistoryTask extends AbstractFindBugsTask {

    private File outputFile;

    private boolean overrideRevisionNames;

    private boolean noPackageMoves;

    private boolean preciseMatch;

    private boolean precisePriorityMatch;

    private boolean quiet;

    private boolean withMessages;

    private List<DataFile> dataFileList;

    public ComputeBugHistoryTask() {
        super("edu.umd.cs.findbugs.workflow.Update");
        dataFileList = new LinkedList<DataFile>();

        setFailOnError(true);
    }

    public void setOutput(File arg) {
        this.outputFile = arg;
    }

    public void setOverrideRevisionNames(boolean arg) {
        this.overrideRevisionNames = arg;
    }

    public void setNoPackageMoves(boolean arg) {
        this.noPackageMoves = arg;
    }

    public void setPreciseMatch(boolean arg) {
        this.preciseMatch = arg;
    }

    public void setPrecisePriorityMatch(boolean arg) {
        this.precisePriorityMatch = arg;
    }

    public void setQuiet(boolean arg) {
        this.quiet = arg;
    }

    public void setWithMessages(boolean arg) {
        this.withMessages = arg;
    }

    /**
     * Called to create DataFile objects in response to nested &lt;DataFile&gt;
     * elements.
     * 
     * @return new DataFile object specifying the location of an input data file
     */
    public DataFile createDataFile() {
        DataFile dataFile = new DataFile();
        dataFileList.add(dataFile);
        return dataFile;
    }

    /*
     * (non-Javadoc)
     * 
     * @see edu.umd.cs.findbugs.anttask.AbstractFindBugsTask#checkParameters()
     */
    @Override
    protected void checkParameters() {
        super.checkParameters();

        if (outputFile == null) {
            throw new BuildException("outputFile attribute must be set", getLocation());
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * edu.umd.cs.findbugs.anttask.AbstractFindBugsTask#configureFindbugsEngine
     * ()
     */
    @Override
    protected void configureFindbugsEngine() {
        addArg("-output");
        addArg(outputFile.getPath());
        if (overrideRevisionNames) {
            addArg("-overrideRevisionNames");
        }
        if (noPackageMoves) {
            addArg("-noPackageMoves");
        }
        if (preciseMatch) {
            addArg("-preciseMatch");
        }
        if (precisePriorityMatch) {
            addArg("-precisePriorityMatch");
        }
        if (quiet) {
            addArg("-quiet");
        }
        if (withMessages) {
            addArg("-withMessages");
        }

        for (DataFile dataFile : dataFileList) {
            addArg(dataFile.getName());
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * edu.umd.cs.findbugs.anttask.AbstractFindBugsTask#beforeExecuteJavaProcess
     * ()
     */
    @Override
    protected void beforeExecuteJavaProcess() {
        log("Running computeBugHistory...");
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * edu.umd.cs.findbugs.anttask.AbstractFindBugsTask#afterExecuteJavaProcess
     * (int)
     */
    @Override
    protected void afterExecuteJavaProcess(int rc) {
        if (rc == 0) {
            log("History database written to " + outputFile.getPath());
        } else {
            throw new BuildException("execution of " + getTaskName() + " failed");
        }
    }
}