1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.diagram.content;
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14 import java.util.HashSet;
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15 import java.util.concurrent.ConcurrentLinkedQueue;
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16 import java.util.concurrent.atomic.AtomicInteger;
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18 import org.simantics.db.AsyncReadGraph;
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19 import org.simantics.db.Resource;
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20 import org.simantics.db.common.request.ResourceAsyncRead;
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21 import org.simantics.db.procedure.AsyncMultiProcedure;
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22 import org.simantics.db.procedure.AsyncProcedure;
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23 import org.simantics.diagram.stubs.DiagramResource;
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24 import org.simantics.diagram.synchronization.ErrorHandler;
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27 * @author Antti Villberg
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28 * @author Tuukka Lehtonen
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30 public class ConnectionPartRequest extends ResourceAsyncRead<ConnectionPartData> {
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32 final ErrorHandler errorHandler;
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34 final DiagramResource dr;
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36 public ConnectionPartRequest(ErrorHandler errorHandler, DiagramResource dr, Resource resource) {
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38 this.errorHandler = errorHandler;
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43 public void perform(AsyncReadGraph graph, final AsyncProcedure<ConnectionPartData> procedure) {
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45 final AtomicInteger ready = new AtomicInteger(3);
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46 final ConnectionPartData result = new ConnectionPartData();
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47 final HashSet<EdgeResource> connectorEdges = new HashSet<EdgeResource>();
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48 final HashSet<EdgeResource> branchEdges = new HashSet<EdgeResource>();
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50 result.edges = connectorEdges;
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51 result.branchPoints = new ConcurrentLinkedQueue<Resource>();
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53 AsyncMultiProcedure<Resource> locationProcedure = new AsyncMultiProcedure<Resource>() {
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56 public void exception(AsyncReadGraph graph, Throwable throwable) {
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57 errorHandler.error("forEachObject(connection, Has I/O) failure", throwable);
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61 public void execute(AsyncReadGraph graph, final Resource location) {
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63 ready.incrementAndGet();
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65 graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {
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68 public void exception(AsyncReadGraph graph, Throwable throwable) {
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69 errorHandler.error("forEachObject(:I/O Connector, Are Connected) failure", throwable);
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73 public void execute(AsyncReadGraph graph, Resource connectedTo) {
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74 synchronized (connectorEdges) {
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75 connectorEdges.add(new EdgeResource(location, connectedTo));
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80 public void finished(AsyncReadGraph graph) {
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81 if (ready.decrementAndGet() == 0) {
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82 connectorEdges.addAll(branchEdges);
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83 procedure.execute(graph, result);
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92 public void finished(AsyncReadGraph graph) {
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93 if (ready.decrementAndGet() == 0) {
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94 connectorEdges.addAll(branchEdges);
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95 procedure.execute(graph, result);
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101 AsyncMultiProcedure<Resource> locationProcedure2 = new AsyncMultiProcedure<Resource>() {
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104 public void exception(AsyncReadGraph graph, Throwable throwable) {
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105 errorHandler.error("forEachObject(connection, Has Branch Point) failure", throwable);
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109 public void execute(AsyncReadGraph graph, final Resource location) {
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111 ready.incrementAndGet();
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113 result.branchPoints.add(location);
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115 graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {
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118 public void exception(AsyncReadGraph graph, Throwable throwable) {
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119 errorHandler.error("forEachObject(:Branch Point, Are Connected) failure", throwable);
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123 public void execute(AsyncReadGraph graph, Resource connectedTo) {
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124 synchronized (branchEdges) {
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125 branchEdges.add(new EdgeResource(location, connectedTo));
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130 public void finished(AsyncReadGraph graph) {
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131 if (ready.decrementAndGet() == 0) {
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132 connectorEdges.addAll(branchEdges);
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133 procedure.execute(graph, result);
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142 public void finished(AsyncReadGraph graph) {
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143 if (ready.decrementAndGet() == 0) {
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144 connectorEdges.addAll(branchEdges);
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145 procedure.execute(graph, result);
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151 AsyncMultiProcedure<Resource> locationProcedure3 = new AsyncMultiProcedure<Resource>() {
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154 public void exception(AsyncReadGraph graph, Throwable throwable) {
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155 errorHandler.error("forEachObject(connection, Has I/O) failure", throwable);
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159 public void execute(AsyncReadGraph graph, final Resource location) {
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161 ready.incrementAndGet();
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163 graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {
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166 public void exception(AsyncReadGraph graph, Throwable throwable) {
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167 errorHandler.error("forEachObject(:I/O Connector, Are Connected) failure", throwable);
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171 public void execute(AsyncReadGraph graph, Resource connectedTo) {
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172 synchronized (connectorEdges) {
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173 connectorEdges.add(new EdgeResource(connectedTo, location));
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178 public void finished(AsyncReadGraph graph) {
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179 if (ready.decrementAndGet() == 0) {
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180 connectorEdges.addAll(branchEdges);
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181 procedure.execute(graph, result);
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190 public void finished(AsyncReadGraph graph) {
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191 if (ready.decrementAndGet() == 0) {
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192 connectorEdges.addAll(branchEdges);
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193 procedure.execute(graph, result);
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199 graph.forEachObject(resource, dr.HasPlainConnector, locationProcedure);
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200 graph.forEachObject(resource, dr.HasBranchPoint, locationProcedure2);
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201 graph.forEachObject(resource, dr.HasArrowConnector, locationProcedure3);
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