Source Code Cross Referenced for RelayAdapter.java in  » Science » Cougaar12_4 » org » cougaar » community » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Science » Cougaar12_4 » org.cougaar.community 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * <copyright>
003:         *  
004:         *  Copyright 2001-2004 Mobile Intelligence Corp
005:         *  under sponsorship of the Defense Advanced Research Projects
006:         *  Agency (DARPA).
007:         * 
008:         *  You can redistribute this software and/or modify it under the
009:         *  terms of the Cougaar Open Source License as published on the
010:         *  Cougaar Open Source Website (www.cougaar.org).
011:         * 
012:         *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
013:         *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
014:         *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
015:         *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
016:         *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
017:         *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
018:         *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
019:         *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
020:         *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
021:         *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
022:         *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
023:         *  
024:         * </copyright>
025:         */
026:
027:        package org.cougaar.community;
028:
029:        import java.util.Collections;
030:        import java.util.HashSet;
031:        import java.util.Iterator;
032:        import java.util.Set;
033:
034:        import org.cougaar.core.mts.MessageAddress;
035:        import org.cougaar.core.relay.Relay;
036:        import org.cougaar.core.service.community.CommunityResponseListener;
037:        import org.cougaar.core.util.UID;
038:
039:        /**
040:         * Generic wrapper for blackboard objects to be sent to remote agents
041:         * using Realay.
042:         */
043:
044:        public class RelayAdapter implements  Relay.Source {
045:            protected Set interestedAgents = Collections
046:                    .synchronizedSet(new HashSet());
047:            protected Set myTargetSet = new HashSet();
048:            MessageAddress source;
049:            Object content;
050:            UID myUID;
051:            Object resp;
052:            transient CommunityResponseListener crl;
053:
054:            public RelayAdapter(MessageAddress source, Object content, UID uid) {
055:                this .source = source;
056:                this .content = content;
057:                this .myUID = uid;
058:            }
059:
060:            public Object getContent() {
061:                return content;
062:            }
063:
064:            /*
065:             * Get a factory for creating the target.
066:             */
067:            public TargetFactory getTargetFactory() {
068:                return null;
069:            }
070:
071:            public Object getResponse() {
072:                return resp;
073:            }
074:
075:            /*
076:             * Set the response that was sent from a target.
077:             */
078:            public int updateResponse(MessageAddress target, Object response) {
079:                this .resp = response;
080:                return Relay.RESPONSE_CHANGE;
081:            }
082:
083:            /**
084:             * Get all the addresses of the target agents to which this Relay
085:             * should be sent.
086:             * @return Set of MessageAddress objects
087:             **/
088:            public Set getTargets() {
089:                if (myTargetSet == null) {
090:                    return Collections.EMPTY_SET;
091:                } else {
092:                    return Collections.unmodifiableSet(myTargetSet);
093:                }
094:            }
095:
096:            /**
097:             * Add a target destination.
098:             * @param target MessageAddress of agent to add to targets
099:             **/
100:            public void addTarget(MessageAddress target) {
101:                if (myTargetSet != null) {
102:                    myTargetSet.add(target);
103:                }
104:            }
105:
106:            public Set getInterestedAgents() {
107:                return interestedAgents;
108:            }
109:
110:            public UID getUID() {
111:                return myUID;
112:            }
113:
114:            /* set the UID of a UniqueObject.  This should only be done by
115:             * an LDM factory.  Will throw a RuntimeException if
116:             * the UID was already set.
117:             */
118:
119:            public void setUID(UID uid) {
120:                if (myUID != null) {
121:                    RuntimeException rt = new RuntimeException(
122:                            "Attempt to call setUID() more than once.");
123:                    throw rt;
124:                }
125:                myUID = uid;
126:            }
127:
128:            public void setCommunityResponseListener(
129:                    CommunityResponseListener crl) {
130:                this .crl = crl;
131:            }
132:
133:            public CommunityResponseListener getCommunityResponseListener() {
134:                return crl;
135:            }
136:
137:            public static String targetsToString(Relay.Source rs) {
138:                StringBuffer sb = new StringBuffer("[");
139:                if (rs != null) {
140:                    for (Iterator it = rs.getTargets().iterator(); it.hasNext();) {
141:                        MessageAddress addr = (MessageAddress) it.next();
142:                        if (addr != null) {
143:                            sb.append(addr.toString());
144:                            if (it.hasNext())
145:                                sb.append(",");
146:                        }
147:                    }
148:                }
149:                sb.append("]");
150:                return sb.toString();
151:            }
152:
153:            public String toString() {
154:                return "RelayAdapter:" + " uid=" + myUID + " source=" + source
155:                        + " content=" + content + " targets="
156:                        + targetsToString(this);
157:            }
158:
159:        }
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