+++ /dev/null
-/*******************************************************************************
- * 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.browsing.ui.swt;
-
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Map.Entry;
-
-import org.eclipse.core.runtime.IAdaptable;
-import org.simantics.db.layer0.SelectionHints;
-import org.simantics.ui.selection.WorkbenchSelectionContentType;
-import org.simantics.ui.selection.WorkbenchSelectionElement;
-import org.simantics.utils.ObjectUtils;
-import org.simantics.utils.datastructures.hints.IHintContext;
-import org.simantics.utils.datastructures.hints.IHintListener;
-import org.simantics.utils.threads.IThreadWorkQueue;
-
-/**
- * A custom internal hint context implementation that does not support
- * notifications to achieve a more space-optimized implementation.
- *
- * @author Tuukka Lehtonen
- */
-public class AdaptableHintContext implements IHintContext, IAdaptable, WorkbenchSelectionElement {
-
- private final Key[] keysToTry;
- protected final Map<Key, Object> hints;
-
- public AdaptableHintContext() {
- this(SelectionHints.STD_KEYS);
- }
-
- public AdaptableHintContext(Key... keys) {
- this(new HashMap<Key, Object>(4), keys);
- }
-
- public AdaptableHintContext(Map<Key, Object> hints, Key... keys) {
- if (hints == null)
- throw new NullPointerException("null hints");
- this.keysToTry = keys;
- this.hints = hints;
- }
-
- @SuppressWarnings({ "unchecked", "rawtypes" })
- @Override
- public Object getAdapter(Class adapter) {
- for (Key key : keysToTry) {
- Object o = getHint(key);
- if (adapter.isAssignableFrom(o.getClass()))
- return o;
- if (o instanceof IAdaptable) {
- Object adapted = ((IAdaptable) o).getAdapter(adapter);
- if (adapted != null) {
- return adapted;
- }
- }
- }
- return null;
- }
-
- @Override
- public String toString() {
- return super.toString() + getHints();
- }
-
- @Override
- public void clearWithoutNotification() {
- hints.clear();
- }
-
- @Override
- public boolean containsHint(Key key) {
- return hints.get(key) != null;
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public <E> E getHint(Key key) {
- if (key == null)
- throw new IllegalArgumentException("key is null");
- synchronized (this) {
- return (E) hints.get(key);
- }
- }
-
- @Override
- public synchronized Map<Key, Object> getHints() {
- return new HashMap<Key, Object>(hints);
- }
-
- @Override
- public Map<Key, Object> getHintsUnsafe() {
- return hints;
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public <E extends Key> Map<E, Object> getHintsOfClass(Class<E> clazz) {
- Map<E, Object> result = null;
- for (Entry<Key, Object> e : hints.entrySet()) {
- Key key = e.getKey();
- if (clazz.isAssignableFrom(key.getClass())) {
- if (result == null)
- result = new HashMap<E, Object>(4);
- result.put((E) key, e.getValue());
- }
- }
- return result;
- }
-
- @Override
- public void setHint(Key key, Object value) {
- if (key == null)
- throw new IllegalArgumentException("key is null");
- if (value == null)
- throw new IllegalArgumentException("value is null");
- if (!key.isValueAccepted(value))
- throw new RuntimeException("Value \"" + value + "\" is not accepted with key " + key.getClass().getName());
-
- synchronized (this) {
- hints.put(key, value);
- }
- }
-
- @Override
- public void setHints(Map<Key, Object> hints) {
- synchronized (this) {
- for (Entry<Key, Object> e : hints.entrySet()) {
- Key key = e.getKey();
- Object value = e.getValue();
- if (value == null)
- throw new IllegalArgumentException("a value is null for key " + e.getKey());
- this.hints.put(key, value);
- }
- }
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public <E> E removeHint(Key key) {
- if (key == null)
- throw new IllegalArgumentException("key is null");
-
- Object oldValue = null;
- synchronized (this) {
- oldValue = hints.remove(key);
- }
- if (oldValue == null)
- return null;
- return (E) oldValue;
- }
-
- @Override
- public void addHintListener(IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void removeHintListener(IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void addKeyHintListener(Key key, IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void removeKeyHintListener(Key key, IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void addHintListener(IThreadWorkQueue threadAccess, IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void removeHintListener(IThreadWorkQueue threadAccess, IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void addKeyHintListener(IThreadWorkQueue threadAccess, Key key, IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void removeKeyHintListener(IThreadWorkQueue threadAccess, Key key, IHintListener listener) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public int hashCode() {
- return ((hints.hashCode() * 31) + Arrays.hashCode(keysToTry)) * 31;
- }
-
- @Override
- public boolean equals(Object obj) {
- if (this == obj)
- return true;
- if (obj == null)
- return false;
- if (getClass() != obj.getClass())
- return false;
- AdaptableHintContext other = (AdaptableHintContext) obj;
- return Arrays.equals(keysToTry, other.keysToTry) && ObjectUtils.objectEquals(hints, other.hints);
- }
-
- @Override
- public <T> T getContent(WorkbenchSelectionContentType<T> contentType) {
- return null;
- }
-
-}
Code Review / simantics / platform.git / blobdiff