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package org.tigris.subversion.svnant.commands;

import java.io.File;

import org.tigris.subversion.svnant.SvnAntException;
import org.tigris.subversion.svnant.SvnAntValidationException;
import org.tigris.subversion.svnclientadapter.SVNClientException;
import org.tigris.subversion.svnclientadapter.SVNRevision;
import org.tigris.subversion.svnclientadapter.SVNUrl;

/**
 * svn Copy. Duplicate something in working copy or repos, remembering history.
 * @author Cédric Chabanois 
 *         <a href="mailto:cchabanois@ifrance.com">cchabanois@ifrance.com</a>
 *
 */
public class Copy extends SvnCommand {
    private File srcPath = null;
    private File destPath = null;
    private SVNUrl srcUrl = null;
    private SVNUrl destUrl = null;
    private boolean withParents = true;
    
    /** revision to copy from (head by default) */
    private SVNRevision revision = SVNRevision.HEAD; 
    
    /** message for commit (only when target is an url) */
    private String message = null; 

    public void execute() throws SvnAntException {

        try {
            if (srcPath != null) {
                if (destPath != null)
                    svnClient.copy(srcPath, destPath);
                else
                    svnClient.copy(srcPath, destUrl, message);
            } else {
            	if (destPath != null)
            		svnClient.copy(srcUrl,destPath,revision);
            	else
            		svnClient.copy(srcUrl,destUrl,message, revision, this.withParents);
            }
        } catch (SVNClientException e) {
            throw new SvnAntException("Can't copy", e);
        }

    }

    /**
     * Ensure we have a consistent and legal set of attributes
     */
    protected void validateAttributes() throws SvnAntValidationException {
        if (((srcPath == null) && (srcUrl == null))
            || ((srcPath != null) && (srcUrl != null)))
            throw new SvnAntValidationException("srcPath attribute or srcUrl attribute must be set");

        if (((destPath == null) && (destUrl == null))
            || ((destPath != null) && (destUrl != null)))
            throw new SvnAntValidationException("destPath attribute or destUrl attribute must be set");
        
        if ((destUrl != null) && (message == null))
            throw new SvnAntValidationException("message attribute needed when destUrl is set");
        
        if ((destUrl == null) && (message != null))
            throw new SvnAntValidationException("message attribute cannot be used when destUrl is not set");
            
        if (revision == null)
            throw SvnAntValidationException.createInvalidRevisionException();
        
    }

	/**
	 * set the path to copy from
	 * @param srcPath
	 */
    public void setSrcPath(File srcPath) {
        this.srcPath = srcPath;
    }

	/**
	 * set the path to copy to
	 * @param destPath
	 */
    public void setDestPath(File destPath) {
        this.destPath = destPath;
    }

	/**
	 * set the url to copy from
	 * @param srcUrl
	 */
    public void setSrcUrl(SVNUrl srcUrl) {
        this.srcUrl = srcUrl;
    }

	/**
	 * set the url to copy to
	 * @param destUrl
	 */
    public void setDestUrl(SVNUrl destUrl) {
        this.destUrl = destUrl;
    }

    /**
     * set the message for the commit (only when copying directly to repository
     * using an url)
     * @param message
     */
    public void setMessage(String message) {
        this.message = message;
    }

    /**
     * Sets the revision
     * 
     * @param revision
     */
    public void setRevision(String revision) {
		this.revision = getRevisionFrom(revision);
    }

		public void setWithParents(boolean withParents) {
			this.withParents = withParents;
		}

		public boolean isWithParents() {
			return withParents;
		}



}

