package org.apache.maven.plugin.resources;

/*
 * 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 org.apache.maven.project.MavenProject;
import org.codehaus.plexus.util.StringUtils;
import org.codehaus.plexus.util.introspection.ReflectionValueExtractor;

import java.util.Properties;


/**
 * @author Andreas Hoheneder (ahoh_at_inode.at)
 * @version $Id: ReflectionProperties.java 613480 2008-01-19 23:52:44Z vsiveton $
 */
public class ReflectionProperties
        extends Properties {

    private MavenProject project;

    boolean escapedBackslashesInFilePath;

    public ReflectionProperties(MavenProject aProject, boolean escapedBackslashesInFilePath) {
        super();

        project = aProject;

        this.escapedBackslashesInFilePath = escapedBackslashesInFilePath;
    }

    public Object get(Object key) {
        Object value = null;
        try {
            value = ReflectionValueExtractor.evaluate("" + key, project, isPrjectProperty(key));
            
            if (escapedBackslashesInFilePath && value != null &&
                    "java.lang.String".equals(value.getClass().getName())) {
                String val = (String) value;

                // Check if it's a windows path
                if (val.indexOf(":\\") == 1) {
                    value = StringUtils.replace((String) value, "\\", "\\\\");
                    value = StringUtils.replace((String) value, ":", "\\:");
                }
            }
        }
        catch (Exception e) {
            //TODO: remove the try-catch block when ReflectionValueExtractor.evaluate() throws no more exceptions
        }
        return value;
    }

    private boolean isPrjectProperty(Object key) {
        boolean isProjectProperty = false;

        if(key != null) {
            String properyName = key.toString();

            isProjectProperty = (properyName.startsWith("project") || properyName.startsWith("pom"));
        }

        return isProjectProperty;
    }
}