X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;ds=inline;f=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fprioritystack%2FPriorityStack.java;h=81029105d203b77c32fc92171fd9d4622918f28c;hb=2161d658d9d7f6a5bd68bd2d629dbfaa14fc3be0;hp=d35362a3c773b9c96ef77f4a874b1f03715a3783;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git
diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/prioritystack/PriorityStack.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/prioritystack/PriorityStack.java
index d35362a3c..81029105d 100644
--- a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/prioritystack/PriorityStack.java
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/prioritystack/PriorityStack.java
@@ -1,201 +1,201 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
- * in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-
-package org.simantics.utils.datastructures.prioritystack;
-
-import java.lang.reflect.Array;
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.Map;
-
-import org.simantics.utils.strings.EString;
-import org.simantics.utils.threads.IThreadWorkQueue;
-import org.simantics.utils.threads.SyncListenerList;
-
-
-/**
- * Implementation to IPriorityStack.
- *
- *
- * Note!
- * getAllItems() is optimized for result with the penalty of slower add/remove methods.
- *
- * @author Toni Kalajainen
- * @param
- */
-public class PriorityStack implements IPriorityStack {
-
- @SuppressWarnings({ "rawtypes" })
- private SyncListenerList listeners =
- new SyncListenerList(IPriorityStackListener.class);
-
- private LinkedList list =
- new LinkedList();
-
- private E[] snapshotArray;
-
- private Map priorities =
- new HashMap();
-
- final Class clazz;
-
- public PriorityStack(Class clazz) {
- this.clazz = clazz;
- snapshotArray = createArray(0);
- }
-
- @Override
- public void add(E interactor, int priority) {
- abu:
- synchronized(this) {
- if (list.contains(interactor))
- throw new IllegalArgumentException("InteractorStack already contains item "+interactor);
-
- priorities.put(interactor, priority);
-
- if (list.size()==0)
- {
- list.add(interactor);
- snapshotArray = createSnapshot(list);
- break abu;
- }
-
- ListIterator li = list.listIterator();
- while (li.hasNext()) {
- E i = li.next();
- double w = priorities.get( i );
- if (w > priority) {
- li.previous();
- li.add(interactor);
- snapshotArray = createSnapshot(list);
- break abu;
- }
- }
- list.addLast(interactor);
- snapshotArray = createSnapshot(list);
- }
- fireInteractorAdded(interactor);
- }
-
- @Override
- public boolean remove(E interactor) {
- synchronized(this) {
- if (!priorities.containsKey(interactor))
- return false;
- priorities.remove(interactor);
- list.remove(interactor);
- snapshotArray = createSnapshot(list);
- }
- fireInteractorRemoved(interactor);
- return true;
- }
-
- @Override
- public synchronized Integer getPriority(E interactor) {
- return priorities.get(interactor);
- }
-
- @SuppressWarnings({ "unchecked" })
- private E[] createArray(int length)
- {
- return (E[]) Array.newInstance(clazz, length);
- }
-
- E[] createSnapshot(List list) {
- E[] result = createArray(list.size());
- int index = 0;
- for (E i : list)
- result[index++] = i;
- return result;
- }
-
- public synchronized int indexOf(E item)
- {
- for (int i=0; i R getSingleItem(Class clazz)
- {
- R array[] = getItemsByClass(clazz);
- if (array.length!=1)
- throw new RuntimeException("one "+clazz.getName()+" expected in PriorityStack, got "+array.length);
- return (R) array[0];
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public synchronized R[] getItemsByClass(Class clazz)
- {
- List result = new ArrayList(list.size());
- for (E i : list)
- if (clazz.isAssignableFrom(i.getClass()))
- result.add(i);
- return (R[])result.toArray(createArray(result.size()));
- }
-
- private static Method itemAdded = SyncListenerList.getMethod(IPriorityStackListener.class, "itemAdded");
- private void fireInteractorAdded(E interactor)
- {
- listeners.fireEventSync(itemAdded, this, interactor);
- }
-
- private static Method itemRemoved = SyncListenerList.getMethod(IPriorityStackListener.class, "itemRemoved");
- private void fireInteractorRemoved(E interactor)
- {
- listeners.fireEventSync(itemRemoved, this, interactor);
- }
-
- @Override
- public synchronized void addStackListener(IPriorityStackListener listener) {
- listeners.add(listener);
- }
-
- @Override
- public synchronized void removeStackListener(IPriorityStackListener listener) {
- listeners.remove(listener);
- }
-
- @Override
- public synchronized boolean contains(E interactor) {
- return list.contains(interactor);
- }
-
- @Override
- public void addStackListener(IThreadWorkQueue thread,
- IPriorityStackListener listener) {
- listeners.add(thread, listener);
- }
-
- @Override
- public void removeStackListener(IThreadWorkQueue thread,
- IPriorityStackListener listener) {
- listeners.remove(thread, listener);
- }
-
- @Override
- public String toString() {
- return EString.implode(snapshotArray, "\n");
- }
-
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+
+package org.simantics.utils.datastructures.prioritystack;
+
+import java.lang.reflect.Array;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.Map;
+
+import org.simantics.utils.strings.EString;
+import org.simantics.utils.threads.IThreadWorkQueue;
+import org.simantics.utils.threads.SyncListenerList;
+
+
+/**
+ * Implementation to IPriorityStack.
+ *
+ *
+ * Note!
+ * getAllItems() is optimized for result with the penalty of slower add/remove methods.
+ *
+ * @author Toni Kalajainen
+ * @param
+ */
+public class PriorityStack implements IPriorityStack {
+
+ @SuppressWarnings({ "rawtypes" })
+ private SyncListenerList listeners =
+ new SyncListenerList(IPriorityStackListener.class);
+
+ private LinkedList list =
+ new LinkedList();
+
+ private E[] snapshotArray;
+
+ private Map priorities =
+ new HashMap();
+
+ final Class clazz;
+
+ public PriorityStack(Class clazz) {
+ this.clazz = clazz;
+ snapshotArray = createArray(0);
+ }
+
+ @Override
+ public void add(E interactor, int priority) {
+ abu:
+ synchronized(this) {
+ if (list.contains(interactor))
+ throw new IllegalArgumentException("InteractorStack already contains item "+interactor);
+
+ priorities.put(interactor, priority);
+
+ if (list.size()==0)
+ {
+ list.add(interactor);
+ snapshotArray = createSnapshot(list);
+ break abu;
+ }
+
+ ListIterator li = list.listIterator();
+ while (li.hasNext()) {
+ E i = li.next();
+ double w = priorities.get( i );
+ if (w > priority) {
+ li.previous();
+ li.add(interactor);
+ snapshotArray = createSnapshot(list);
+ break abu;
+ }
+ }
+ list.addLast(interactor);
+ snapshotArray = createSnapshot(list);
+ }
+ fireInteractorAdded(interactor);
+ }
+
+ @Override
+ public boolean remove(E interactor) {
+ synchronized(this) {
+ if (!priorities.containsKey(interactor))
+ return false;
+ priorities.remove(interactor);
+ list.remove(interactor);
+ snapshotArray = createSnapshot(list);
+ }
+ fireInteractorRemoved(interactor);
+ return true;
+ }
+
+ @Override
+ public synchronized Integer getPriority(E interactor) {
+ return priorities.get(interactor);
+ }
+
+ @SuppressWarnings({ "unchecked" })
+ private E[] createArray(int length)
+ {
+ return (E[]) Array.newInstance(clazz, length);
+ }
+
+ E[] createSnapshot(List list) {
+ E[] result = createArray(list.size());
+ int index = 0;
+ for (E i : list)
+ result[index++] = i;
+ return result;
+ }
+
+ public synchronized int indexOf(E item)
+ {
+ for (int i=0; i R getSingleItem(Class clazz)
+ {
+ R array[] = getItemsByClass(clazz);
+ if (array.length!=1)
+ throw new RuntimeException("one "+clazz.getName()+" expected in PriorityStack, got "+array.length);
+ return (R) array[0];
+ }
+
+ @SuppressWarnings("unchecked")
+ @Override
+ public synchronized R[] getItemsByClass(Class clazz)
+ {
+ List result = new ArrayList(list.size());
+ for (E i : list)
+ if (clazz.isAssignableFrom(i.getClass()))
+ result.add(i);
+ return (R[])result.toArray(createArray(result.size()));
+ }
+
+ private static Method itemAdded = SyncListenerList.getMethod(IPriorityStackListener.class, "itemAdded");
+ private void fireInteractorAdded(E interactor)
+ {
+ listeners.fireEventSync(itemAdded, this, interactor);
+ }
+
+ private static Method itemRemoved = SyncListenerList.getMethod(IPriorityStackListener.class, "itemRemoved");
+ private void fireInteractorRemoved(E interactor)
+ {
+ listeners.fireEventSync(itemRemoved, this, interactor);
+ }
+
+ @Override
+ public synchronized void addStackListener(IPriorityStackListener listener) {
+ listeners.add(listener);
+ }
+
+ @Override
+ public synchronized void removeStackListener(IPriorityStackListener listener) {
+ listeners.remove(listener);
+ }
+
+ @Override
+ public synchronized boolean contains(E interactor) {
+ return list.contains(interactor);
+ }
+
+ @Override
+ public void addStackListener(IThreadWorkQueue thread,
+ IPriorityStackListener listener) {
+ listeners.add(thread, listener);
+ }
+
+ @Override
+ public void removeStackListener(IThreadWorkQueue thread,
+ IPriorityStackListener listener) {
+ listeners.remove(thread, listener);
+ }
+
+ @Override
+ public String toString() {
+ return EString.implode(snapshotArray, "\n");
+ }
+
+}