modula.parser.env.URLResolver.java Source code

Introduction

Here is the source code for modula.parser.env.URLResolver.java

Source

/*
 * 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.
 */
package modula.parser.env;

import modula.parser.PathResolver;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

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

/**
 * PathResolver
 */
public class URLResolver implements PathResolver, Serializable {

    /**
     * Serial version UID.
     */
    private static final long serialVersionUID = 1L;

    /**
     * log
     */
    private Log log = LogFactory.getLog(PathResolver.class);

    /**
     * baseURL
     */
    private URL baseURL = null;

    public URLResolver(final URL baseURL) {
        this.baseURL = baseURL;
    }

    /**
     * URL(URL, String)? URL
     *
     * @see PathResolver#resolvePath(java.lang.String)
     */
    public String resolvePath(final String ctxPath) {
        URL combined;
        try {
            combined = new URL(baseURL, ctxPath);
            return combined.toString();
        } catch (MalformedURLException e) {
            log.error("Malformed URL", e);
        }
        return null;
    }

    /**
     * @see PathResolver#getResolver(java.lang.String)
     */
    public PathResolver getResolver(final String ctxPath) {
        URL combined;
        try {
            combined = new URL(baseURL, ctxPath);
            return new URLResolver(combined);
        } catch (MalformedURLException e) {
            log.error("Malformed URL", e);
        }
        return null;
    }

}