blog/util/BlogMessagingKeyToken.java

/*
 * Copyright 2005-2008 The Portal Application Laboratory Team.
 *
 * Licensed 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 jp.sf.pal.blog.util;

import java.util.StringTokenizer;

import jp.sf.pal.blog.BlogConstants;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class BlogMessagingKeyToken {
    /**
     * Logger for this class
     */
    private static final Log log = LogFactory
            .getLog(BlogMessagingKeyToken.class);

    private String prefix;

    private String owner;

    public BlogMessagingKeyToken() {
        this.prefix = null;
        this.owner = null;
    }

    public BlogMessagingKeyToken(String key) {
        this();
        set(key);
    }

    protected String get() {
        if(log.isDebugEnabled()) {
            log.debug("get() - start");
        }
        String keyToken = null;
        StringBuffer sb = new StringBuffer();
        if (this.prefix != null) {
            sb.append(this.prefix);
        }
        if (this.owner != null) {
            sb.append(BlogConstants.BLOG_MESSAGING_TOKEN_SEPARATOR);
            sb.append(this.owner);
        }
        if (sb.length() > 0) {
            keyToken = sb.toString();
        }
        if(log.isDebugEnabled()) {
            log.debug("get() - : value=" + keyToken);
        }
        if(log.isDebugEnabled()) {
            log.debug("get() - end");
        }
        return keyToken;
    }

    public String getPrefix() {
        return this.prefix;
    }

    public String getOwner() {
        return this.owner;
    }

    protected void set(String key) {
        if(log.isDebugEnabled()) {
            log.debug("set(String) - start");
        }
        if(log.isDebugEnabled()) {
            log.debug("set(String) - : key=" + key);
        }
        StringTokenizer st = new StringTokenizer(key,
                BlogConstants.BLOG_MESSAGING_TOKEN_SEPARATOR);
        if (st.hasMoreTokens()) {
            this.prefix = st.nextToken();
        }
        if (st.hasMoreTokens()) {
            this.owner = st.nextToken();
        }
        if(log.isDebugEnabled()) {
            log.debug("set(String) - end");
        }
    }

    public void setPrefix(String prefix) {
        this.prefix = prefix;
    }

    public void setOwner(String owner) {
        this.owner = owner;
    }

    public String toString() {
        if(log.isDebugEnabled()) {
            log.debug("toString() - start");
        }
        String key = get();
        if(log.isDebugEnabled()) {
            log.debug("toString() - end");
        }
        return key;
    }
}