org.semispace.Tuple.java Source code

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Here is the source code for org.semispace.Tuple.java

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/*
 * ============================================================================
 *
 *  File:     Tuple.java
 *----------------------------------------------------------------------------
 *
 * Copyright 2008 Erlend Nossum
 *
 * 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.
 *
 *  Description:  See javadoc below
 *
 *  Created:      24. des.. 2007
 * ============================================================================ 
 */

package org.semispace;

import java.io.Serializable;
import java.util.Comparator;
import java.util.Map;
import java.util.HashMap; //TODO should be ConcurrentHashMap ???
import java.util.List;
import java.util.ArrayList;
import org.semispace.api.ISemiSpaceTuple;
import org.semispace.api.ITupleFields;

import org.json.simple.JSONObject;

/**
 * Tuple of an entry written into the space.
 * @park modifications
 */
public class Tuple implements ISemiSpaceTuple {
    //from IdentifyAdminQuery
    public Integer idx;
    public Boolean amIAdmin;
    public Boolean hasAnswered;
    //from NameValueQuery
    public String name;
    public String value;
    //from TimeAnswer
    public Long timeFromMaster;
    public int masterId;
    //from TimeQuery
    public Boolean isFinished;

    private long liveUntil = Long.MAX_VALUE; // default value
    private String json;
    private long id = -1;
    private Map<String, Object> searchMap;
    private String tag;

    public long getId() {
        long result = this.id;
        if (result == -1) {
            Object o = searchMap.get(ITupleFields.ID);
            if (o != null)
                result = ((Long) o).longValue();
        }
        return result;
    }

    public void setId(Long id) {
        this.id = id;
        set(ITupleFields.ID, id);
    }

    public Tuple(String json, long liveUntil, String tag, long id, Map<String, Object> map) {
        this.searchMap = map;
        this.json = json;
        this.liveUntil = liveUntil;
        setId(new Long(id));
        setTag(tag);
    }

    public Tuple(long id, String tag) {
        this.searchMap = new HashMap<String, Object>();
        setId(new Long(id));
        setTag(tag);
    }

    public Tuple(long id, String tag, Map<String, Object> props) {
        this.searchMap = props;
        setId(new Long(id));
        setTag(tag);
    }

    public String getTag() {
        return this.tag;
    }

    public String getJSON() {
        if (this.json == null) {
            synchronized (searchMap) {
                JSONObject jobj = new JSONObject(this.searchMap);
                json = jobj.toString();
            }
        }
        return this.json;
    }

    public synchronized long getLiveUntil() {
        return this.liveUntil;
    }

    public Map<String, Object> getSearchMap() {
        synchronized (searchMap) {
            return this.searchMap;
        }
    }

    public synchronized void setLiveUntil(long liveUntil) {
        this.liveUntil = liveUntil;
    }

    @Override
    public void setTag(String newTag) {
        this.tag = newTag;
        this.searchMap.put("tag", tag);
    }

    @Override
    public void set(String name, Object f) {
        synchronized (searchMap) {
            this.searchMap.put(name, f);
        }
    }

    @Override
    public Object get(String name) {
        synchronized (searchMap) {
            return this.searchMap.get(name);
        }
    }

    @Override
    public void setPriority(Long p) {
        set("priority", p);
    }

    @Override
    public Long getPriority() {
        return (Long) get("priority");
    }

    @Override
    public void addAgentName(String agentName) {
        synchronized (searchMap) {
            List<String> o = (List<String>) this.searchMap.get(ITupleFields.AGENT_NAME);
            if (o == null) {
                o = new ArrayList<String>();
                searchMap.put(ITupleFields.AGENT_NAME, o);
            }
            o.add(agentName);
        }
    }

}