Java tutorial
/* The contents of this file are subject to the Common Public Attribution License Version 1.0 (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.projity.com/license . The License is based on the Mozilla Public License Version 1.1 but Sections 14 and 15 have been added to cover use of software over a computer network and provide for limited attribution for the Original Developer. In addition, Exhibit A has been modified to be consistent with Exhibit B. Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. The Original Code is OpenProj. The Original Developer is the Initial Developer and is Projity, Inc. All portions of the code written by Projity are Copyright (c) 2006, 2007. All Rights Reserved. Contributors Projity, Inc. Alternatively, the contents of this file may be used under the terms of the Projity End-User License Agreeement (the Projity License), in which case the provisions of the Projity License are applicable instead of those above. If you wish to allow use of your version of this file only under the terms of the Projity License and not to allow others to use your version of this file under the CPAL, indicate your decision by deleting the provisions above and replace them with the notice and other provisions required by the Projity License. If you do not delete the provisions above, a recipient may use your version of this file under either the CPAL or the Projity License. [NOTE: The text of this license may differ slightly from the text of the notices in Exhibits A and B of the license at http://www.projity.com/license. You should use the latest text at http://www.projity.com/license for your modifications. You may not remove this license text from the source files.] Attribution Information: Attribution Copyright Notice: Copyright 2006, 2007 Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj, an open source solution from Projity. Attribution URL: http://www.projity.com Graphic Image as provided in the Covered Code as file: openproj_logo.png with alternatives listed on http://www.projity.com/logo Display of Attribution Information is required in Larger Works which are defined in the CPAL as a work which combines Covered Code or portions thereof with code not governed by the terms of the CPAL. However, in addition to the other notice obligations, all copies of the Covered Code in Executable and Source Code form distributed must, as a form of attribution of the original author, include on each user interface screen the "OpenProj" logo visible to all users. The OpenProj logo should be located horizontally aligned with the menu bar and left justified on the top left of the screen adjacent to the File menu. The logo must be at least 100 x 25 pixels. When users click on the "OpenProj" logo it must direct them back to http://www.projity.com. */ package com.projity.interval; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.Serializable; import java.util.ArrayList; import java.util.Collections; import java.util.GregorianCalendar; import java.util.Iterator; import java.util.List; import org.apache.commons.lang.builder.ToStringBuilder; import com.projity.grouping.core.model.NodeModel; import com.projity.grouping.core.model.NodeModelDataFactory; import com.projity.pm.calendar.WorkCalendar; import com.projity.strings.Messages; import com.projity.util.DateTime; import com.projity.util.Environment; /** * */ public abstract class ValueObjectForIntervalTable implements NodeModelDataFactory, Serializable, Cloneable { static final long serialVersionUID = 7728399282882L; private static final long NO_VALUE = -1L; protected ArrayList valueObjects = new ArrayList(); protected String name; public List getList() { return Collections.unmodifiableList(valueObjects); } public ArrayList getValueObjects() { //serialization return valueObjects; } public ValueObjectForIntervalTable() { } public ValueObjectForIntervalTable(String name, ArrayList valueObjects) { //serialization this.name = name; this.valueObjects = valueObjects; } public ValueObjectForIntervalTable(String name) { this.name = name; valueObjects.add(createValueObject(ValueObjectForInterval.NA_TIME)); // put in default one } protected abstract ValueObjectForInterval createValueObject(); protected abstract ValueObjectForInterval createValueObject(long date); /** * A factory method returning a new value at a given date * @param start * @return * @throws InvalidValueObjectForIntervalException */ public ValueObjectForInterval newValueObject(long start) throws InvalidValueObjectForIntervalException { ValueObjectForInterval newOne = createValueObject(start); int index = Collections.binarySearch(valueObjects, newOne, newOne); // find where to insert if (index < 0) { // if doesn't already exist if (valueObjects.isEmpty()) { valueObjects.add(newOne); newOne.setEnd(DateTime.getMaxDate().getTime()); } else { if (index == -1) { index = -2; } ValueObjectForInterval previous = (ValueObjectForInterval) valueObjects.get(-index - 2); // get previous element valueObjects.add(-index - 1, newOne); // add new in place newOne.setEnd(previous.getEnd()); //set new one's end to prevous end previous.setEnd(start); // set previous end to this start } } else { // not allowed to make duplicate, so send back error if (!Environment.isNoPodServer() || index != valueObjects.size() - 1) throw new InvalidValueObjectForIntervalException( Messages.getString("ValueObjectForIntervalTable.ThatEffectiveDateIsAlreadyInTheTable")); //$NON-NLS-1$ ValueObjectForInterval found = (ValueObjectForInterval) valueObjects.get(index); found.setStart(newOne.getEnd()); valueObjects.add(index, newOne); } removeZeros(); return newOne; } public ValueObjectForInterval add(long start, double value) { return addInterval(start, DateTime.getMaxDate().getTime(), value); } private long inRange(long val) { if (val < 0) return 0; if (val > DateTime.getMaxDate().getTime()) return DateTime.getMaxDate().getTime(); return val; } public ValueObjectForInterval addInterval(long start, long finish, double value) { System.out.println("add interval " + DateTime.medString(start) + " " + DateTime.medString(finish) + " " + value + " as millis" + value * WorkCalendar.MILLIS_IN_HOUR); if (start > DateTime.getMaxDate().getTime()) return null; if (finish < 0) return null; start = inRange(start); finish = inRange(finish); if (start == finish) return null; try { if (valueObjects.isEmpty()) { ValueObjectForInterval initialEmpty = newValueObject(0); initialEmpty.setPrimaryValue(0.0D); } ValueObjectForInterval newOne = newValueObject(start); newOne.setPrimaryValue(value); if (finish != NO_VALUE) { ValueObjectForInterval empty = newValueObject(finish); // add blank space empty.setPrimaryValue(0.0D); } removeZeros(); return newOne; } catch (InvalidValueObjectForIntervalException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } } private void removeZeros() { Iterator i = valueObjects.iterator(); while (i.hasNext()) { ValueObjectForInterval v = (ValueObjectForInterval) i.next(); if (v.getStart() >= v.getEnd()) i.remove(); } } public long getEnd() { long end = 0; Iterator i = valueObjects.iterator(); while (i.hasNext()) { end = Math.max(end, ((ValueObjectForInterval) i.next()).getEnd()); } return end; } /** * Adjust the start date of a value object. Assure that it is in valid range, and adjust previous element's end as well as this one's start * @param newStart * @param valueObject * @throws InvalidValueObjectForIntervalException */ public void adjustStart(long newStart, ValueObjectForInterval valueObject) throws InvalidValueObjectForIntervalException { int index = valueObjects.indexOf(valueObject); if (index == 0) return; ValueObjectForInterval previous = (ValueObjectForInterval) valueObjects.get(index - 1); if (newStart <= previous.getStart()) throw new InvalidValueObjectForIntervalException( Messages.getString("ValueObjectForIntervalTable.ThisDateMustBeAfter")); //$NON-NLS-1$ if (newStart >= valueObject.getEnd()) // see if this would disappear throw new InvalidValueObjectForIntervalException( Messages.getString("ValueObjectForIntervalTable.ThisDateMustBeBefore")); //$NON-NLS-1$ previous.setEnd(newStart); valueObject.setStart(newStart); removeZeros(); } public long getStart() { long start = DateTime.getMaxDate().getTime(); Iterator i = valueObjects.iterator(); while (i.hasNext()) { start = Math.min(start, ((ValueObjectForInterval) i.next()).getStart()); } return start; } /** * Remove an entry from the table * @param interval object * @throws InvalidValueObjectForIntervalException if it's the first element */ public void remove(ValueObjectForInterval removeMe) throws InvalidValueObjectForIntervalException { if (removeMe.isFirst()) // don't allow removal of first value throw new InvalidValueObjectForIntervalException( Messages.getString("ValueObjectForIntervalTable.YouCannotRemoveTheFirst")); //$NON-NLS-1$ int index = valueObjects.indexOf(removeMe); ValueObjectForInterval previous = (ValueObjectForInterval) valueObjects.get(index - 1); // set previous end to this end previous.setEnd(removeMe.getEnd()); valueObjects.remove(removeMe); removeZeros(); } private int findActiveIndex(long date) { ValueObjectForInterval find = createValueObject(date); int index = Collections.binarySearch(valueObjects, find, find); // find it if (index < 0) // binary search is weird. The element before is -index - 2 index = -index - 2; // gets index of element before return index; } /** * Finds the Rate/Availability which is on or before a date * @param date * @return */ public ValueObjectForInterval findActive(long date) { return (ValueObjectForInterval) valueObjects.get(findActiveIndex(date)); } public ValueObjectForInterval findCurrent() { return findActive(System.currentTimeMillis()); } public String getName() { return name; } /** * Create a new entry one year later */ public Object createUnvalidatedObject(NodeModel nodeModel, Object parent) { long baseDate = DateTime.midnightToday(); ValueObjectForInterval last = (ValueObjectForInterval) valueObjects.get(valueObjects.size() - 1); // get last one baseDate = Math.max(baseDate, last.getStart()); // latest of today or last entry GregorianCalendar cal = DateTime.calendarInstance(); cal.setTimeInMillis(baseDate); cal.roll(GregorianCalendar.YEAR, true); // one year later than last one's start or today long date = cal.getTimeInMillis(); try { return newValueObject(date); } catch (InvalidValueObjectForIntervalException e) { // TODO Auto-generated catch block e.printStackTrace(); // should not ever happen return null; } } public void addUnvalidatedObject(Object object, NodeModel nodeModel, Object parent) { } public NodeModelDataFactory getFactoryToUseForChildOfParent(Object impl) { return this; } public void rollbackUnvalidated(NodeModel nodeModel, Object object) { // try { remove(object, nodeModel, false, true, true); // } catch (NodeException e) { // // TODO Auto-generated catch block // e.printStackTrace(); // } } public void remove(Object toRemove, NodeModel nodeModel, boolean deep, boolean undo, boolean removeDependencies) { try { remove((ValueObjectForInterval) toRemove); } catch (InvalidValueObjectForIntervalException e) { return; // Alert.error(e.getMessage()); // throw new NodeException(e); } } public void validateObject(Object newlyCreated, NodeModel nodeModel, Object eventSource, Object hierarchyInfo, boolean isNew) { } // public void fireCreated(Object newlyCreated){} public void serialize(ObjectOutputStream s) throws IOException { s.writeObject(name); s.writeObject(valueObjects); } public void serializeCompact(ObjectOutputStream s) throws IOException { s.writeObject(name); if (valueObjects == null) { s.writeInt(-1); return; } s.writeInt(valueObjects.size()); for (Iterator i = valueObjects.iterator(); i.hasNext();) { ValueObjectForInterval interval = (ValueObjectForInterval) i.next(); interval.serializeCompact(s, this); } } protected static ValueObjectForIntervalTable deserialize(ObjectInputStream s, ValueObjectForIntervalTable v) throws IOException, ClassNotFoundException { v.name = (String) s.readObject(); v.valueObjects = (ArrayList) s.readObject(); return v; } public void deserializeCompact(ObjectInputStream s) throws IOException, ClassNotFoundException { name = (String) s.readObject(); int count = s.readInt(); for (int i = 0; i < count; i++) { ValueObjectForInterval v = createValueObject(); v.deserializeCompact(s, this); valueObjects.add(v); } } public Object clone() { try { ValueObjectForIntervalTable v = (ValueObjectForIntervalTable) super.clone(); v.name = (name == null) ? null : new String(name); ArrayList newList = new ArrayList(); for (Iterator i = valueObjects.iterator(); i.hasNext();) { newList.add(((ValueObjectForInterval) i.next()).clone()); } v.valueObjects = newList; return v; } catch (CloneNotSupportedException e) { throw new InternalError(); } } public void initAfterCloning() { for (Iterator i = valueObjects.iterator(); i.hasNext();) { ((ValueObjectForInterval) i.next()).setTable(this); } } public String toString() { return ToStringBuilder.reflectionToString(this); } }