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/**
 * Copyright (c) 2005-2012 EBM WebSourcing, 2012-2016 Linagora
 * 
 * This program/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 program/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 program/library; If not, see http://www.gnu.org/licenses/
 * for the GNU Lesser General Public License version 2.1.
 */
package org.ow2.petals.ant;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.tools.ant.BuildException;

/**
 * This class is used to install or deploy a JBI component, shared library or service assembly.
 * @author ddesjardins - EBM WebSourcing
 * @author Christophe Hamerling - EBM WebSourcing
 */
public abstract class AbstractInstallerAntTask extends AbstractJBIAntTask {

    /**
     * Fully qualified installation file path name
     */
    protected String file;

    /**
     * 
     * @param file
     */
    public void setFile(String file) {
        this.file = file;
    }

    /**
     * Validate the file parameter. The file parameter should not be null and
     * must be a jar or a zip archive.
     * 
     * @throws BuildException
     */
    protected URL validateFileParameter() throws BuildException {
        if (file == null) {
            throw new BuildException("Missing attribute 'file'");
        }

        if (file.isEmpty()) {
            throw new BuildException("Empty attribute 'file'");
        }

        if (!file.endsWith(".zip") && !file.endsWith(".jar")) {
            throw new BuildException("File '" + file
                    + "' is not a valid archive (zip or jar required)");
        }

        URL fileURL;
        try {
            // in the case it is an URL (file://..., http://...)
            fileURL = new URL(file);
        } catch (MalformedURLException e) {
            try {
                // in the case it is simply a path
                fileURL = new File(file).toURI().toURL();
            } catch (MalformedURLException e1) {
                BuildException e2 = new BuildException(
                        "Wrong format for attribute 'file', a valid file location is required", e1);
                e2.addSuppressed(e);
                throw e2;
            }
        }
        return fileURL;
    }

}