[jboss-svn-commits] JBL Code SVN: r19432 - labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable.

[jboss-svn-commits at lists.jboss.org]

Author: KrisVerlaenen
Date: 2008-04-06 19:48:41 -0400 (Sun, 06 Apr 2008)
New Revision: 19432

Added:
   labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/Variable.java
   labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/VariableScope.java
Log:
JBRULES-1548: ePDL: XML-based process definition language 
 - Ruleflow processes now stored using nicer XML format
JBRULES-1549: Workflow Context
 - Context as the basis for grouping nodes
JBRULES-1550: Workflow timer
 - Timer node + service
JBRULES-1551: Workflow human tasks
 - Added initial implementation for integration human tasks

Added: labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/Variable.java
===================================================================
--- labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/Variable.java	                        (rev 0)
+++ labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/Variable.java	2008-04-06 23:48:41 UTC (rev 19432)
@@ -0,0 +1,81 @@
+package org.drools.process.core.context.variable;
+
+/*
+ * Copyright 2005 JBoss Inc
+ * 
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.Serializable;
+
+import org.drools.process.core.context.variable.Variable;
+import org.drools.process.core.datatype.DataType;
+import org.drools.process.core.datatype.impl.type.UndefinedDataType;
+
+/**
+ * Default implementation of a variable.
+ * 
+ * @author <a href="mailto:kris_verlaenen at hotmail.com">Kris Verlaenen</a>
+ */
+public class Variable implements Serializable {
+
+    private static final long serialVersionUID = 400L;
+
+    private String            name;
+    private DataType         type;
+    private Serializable      value;
+
+    public Variable() {
+        this.type = UndefinedDataType.getInstance();
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    public DataType getType() {
+        return this.type;
+    }
+
+    public void setType(final DataType type) {
+        if ( type == null ) {
+            throw new IllegalArgumentException( "type is null" );
+        }
+        this.type = type;
+    }
+
+    public Serializable getValue() {
+        return this.value;
+    }
+
+    public void setValue(final Serializable value) {
+        if ( this.type.verifyDataType( value ) ) {
+            this.value = value;
+        } else {
+            final StringBuffer sb = new StringBuffer();
+            sb.append( "Value <" );
+            sb.append( value );
+            sb.append( "> is not valid for datatype: " );
+            sb.append( this.type );
+            throw new IllegalArgumentException( sb.toString() );
+        }
+    }
+
+    public String toString() {
+        return this.name;
+    }
+}

Added: labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/VariableScope.java
===================================================================
--- labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/VariableScope.java	                        (rev 0)
+++ labs/jbossrules/trunk/drools-core/src/main/java/org/drools/process/core/context/variable/VariableScope.java	2008-04-06 23:48:41 UTC (rev 19432)
@@ -0,0 +1,67 @@
+package org.drools.process.core.context.variable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.drools.process.core.Context;
+import org.drools.process.core.context.AbstractContext;
+
+/**
+ * 
+ * @author <a href="mailto:kris_verlaenen at hotmail.com">Kris Verlaenen</a>
+ */
+public class VariableScope extends AbstractContext {
+
+    public static final String VARIABLE_SCOPE = "VariableScope";
+    
+    private static final long serialVersionUID = 400L;
+    
+    private List<Variable> variables;
+    
+    public VariableScope() {
+        this.variables = new ArrayList<Variable>();
+    }
+    
+    public String getType() {
+        return VariableScope.VARIABLE_SCOPE;
+    }
+    
+    public List<Variable> getVariables() {
+        return this.variables;
+    }
+
+    public void setVariables(final List<Variable> variables) {
+        if ( variables == null ) {
+            throw new IllegalArgumentException( "Variables is null" );
+        }
+        this.variables = variables;
+    }
+
+    public String[] getVariableNames() {
+        final String[] result = new String[this.variables.size()];
+        if (this.variables != null) {
+            for ( int i = 0; i < this.variables.size(); i++ ) {
+                result[i] = ((Variable) this.variables.get( i )).getName();
+            }
+        }
+        return result;
+    }
+
+    public Variable findVariable(String variableName) {
+        for (Variable variable: getVariables()) {
+            if (variable.getName().equals(variableName)) {
+                return variable;
+            }
+        }
+        return null;
+    }
+
+    public Context resolveContext(Object param) {
+        if (param instanceof String) {
+            return findVariable((String) param) == null ? null : this;
+        }
+        throw new IllegalArgumentException(
+            "VariableScopes can only resolve variable names: " + param);
+    }
+
+}