001: /*
002: * <copyright>
003: *
004: * Copyright 1997-2004 BBNT Solutions, LLC
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.planning.ldm.plan;
028:
029: import java.util.Date;
030:
031: import org.cougaar.util.TimeSpan;
032:
033: /**
034: * Base class for ScheduleElement. Millisecond accuracy times are stored
035: * in seconds since java epoch start, GMT. Start time is closed, end time is open.
036: */
037:
038: public class ScheduleElementImpl implements ScheduleElement,
039: NewScheduleElement, java.io.Serializable {
040: protected long stime = TimeSpan.MIN_VALUE;
041: protected long etime = TimeSpan.MAX_VALUE;
042:
043: /** no-arg constructor */
044: public ScheduleElementImpl() {
045: }
046:
047: /** constructor for factory use that takes the start and end dates */
048: public ScheduleElementImpl(Date start, Date end) {
049: stime = start.getTime();
050: etime = end.getTime();
051: if (stime == etime)
052: throw new IllegalArgumentException(
053: "ScheduleElements must span a non-zero amount of time.");
054: }
055:
056: /** constructor for factory use that takes the start and end dates */
057: public ScheduleElementImpl(long start, long end) {
058: stime = start;
059: etime = end;
060: if (stime == etime)
061: throw new IllegalArgumentException(
062: "ScheduleElements must span a non-zero amount of time.");
063: }
064:
065: public Date getStartDate() {
066: return new Date(stime);
067: }
068:
069: public long getStartTime() {
070: return stime;
071: }
072:
073: public Date getEndDate() {
074: return new Date(etime);
075: }
076:
077: public long getEndTime() {
078: return etime;
079: }
080:
081: /** @return boolean whether the date is included in this schedule */
082: public boolean included(Date date) {
083: return included(date.getTime());
084: }
085:
086: public boolean included(long time) {
087: return ((time >= stime) && (time < etime));
088: }
089:
090: /** @return boolean whether schedules overlap */
091: public boolean overlapSchedule(ScheduleElement se) {
092: long tstime = se.getStartTime();
093: long tetime = se.getEndTime();
094:
095: return (tstime < etime && tetime > stime);
096: }
097:
098: public boolean abutSchedule(ScheduleElement se) {
099: long tstime = se.getStartTime();
100: long tetime = se.getEndTime();
101:
102: return (tstime == etime || tetime == stime);
103: }
104:
105: // NewSchedule interface implementations
106:
107: /** @param startdate Set Start time for the task */
108: public void setStartDate(Date startdate) {
109: stime = startdate.getTime();
110: if (stime == etime)
111: throw new IllegalArgumentException(
112: "ScheduleElements must span a non-zero amount of time.");
113: }
114:
115: public void setStartTime(long t) {
116: stime = t;
117: if (stime == etime)
118: throw new IllegalArgumentException(
119: "ScheduleElements must span a non-zero amount of time.");
120: }
121:
122: /** @param enddate Set End time for the task */
123: public void setEndDate(Date enddate) {
124: etime = enddate.getTime();
125: if (stime == etime)
126: throw new IllegalArgumentException(
127: "ScheduleElements must span a non-zero amount of time.");
128: }
129:
130: public void setEndTime(long t) {
131: etime = t;
132: if (stime == etime)
133: throw new IllegalArgumentException(
134: "ScheduleElements must span a non-zero amount of time.");
135: }
136:
137: public void setStartEndTimes(long starttime, long endtime) {
138: stime = starttime;
139: etime = endtime;
140: if (etime <= stime)
141: throw new IllegalArgumentException(
142: "ScheduleElements must span a non-zero amount of time.");
143: }
144:
145: public String toString() {
146: return "<" + getStartDate() + "-" + getEndDate() + ">";
147: }
148:
149: }
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