diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/LocalProperties.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/LocalProperties.java | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/LocalProperties.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/LocalProperties.java new file mode 100644 index 00000000..c9ce3af0 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/LocalProperties.java @@ -0,0 +1,152 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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. + * + */ +package org.apache.tools.ant.property; + +import org.apache.tools.ant.MagicNames; +import org.apache.tools.ant.Project; +import org.apache.tools.ant.PropertyHelper; + +/** + * Thread local class containing local properties. + * @since Ant 1.8.0 + */ +public class LocalProperties + extends InheritableThreadLocal<LocalPropertyStack> + implements PropertyHelper.PropertyEvaluator, + PropertyHelper.PropertySetter { + + /** + * Get a localproperties for the given project. + * @param project the project to retrieve the localproperties for. + * @return the localproperties. + */ + public static synchronized LocalProperties get(Project project) { + LocalProperties l = (LocalProperties) project.getReference( + MagicNames.REFID_LOCAL_PROPERTIES); + if (l == null) { + l = new LocalProperties(); + project.addReference(MagicNames.REFID_LOCAL_PROPERTIES, l); + PropertyHelper.getPropertyHelper(project).add(l); + } + return l; + } + + // -------------------------------------------------- + // + // Thread stuff + // + // -------------------------------------------------- + + /** + * Construct a new LocalProperties object. + */ + private LocalProperties() { + } + + /** + * Get the initial value. + * @return a new localproperties stack. + */ + protected synchronized LocalPropertyStack initialValue() { + return new LocalPropertyStack(); + } + + private LocalPropertyStack current() { + return (LocalPropertyStack) get(); + } + + // -------------------------------------------------- + // + // Local property adding and scoping + // + // -------------------------------------------------- + + /** + * Add a local property to the current scope. + * @param property the property name to add. + */ + public void addLocal(String property) { + current().addLocal(property); + } + + /** enter the scope */ + public void enterScope() { + current().enterScope(); + } + + /** exit the scope */ + public void exitScope() { + current().exitScope(); + } + + // -------------------------------------------------- + // + // Copy - used in parallel to make a new stack + // + // -------------------------------------------------- + + /** + * Copy the stack for a parallel thread. + * To be called from the parallel thread itself. + */ + public void copy() { + set(current().copy()); + } + + // -------------------------------------------------- + // + // PropertyHelper delegate methods + // + // -------------------------------------------------- + + /** + * Evaluate a property. + * @param property the property's String "identifier". + * @param helper the invoking PropertyHelper. + * @return Object value. + */ + public Object evaluate(String property, PropertyHelper helper) { + return current().evaluate(property, helper); + } + + /** + * Set a *new" property. + * @param property the property's String "identifier". + * @param value the value to set. + * @param propertyHelper the invoking PropertyHelper. + * @return true if this entity 'owns' the property. + */ + public boolean setNew( + String property, Object value, PropertyHelper propertyHelper) { + return current().setNew(property, value, propertyHelper); + } + + /** + * Set a property. + * @param property the property's String "identifier". + * @param value the value to set. + * @param propertyHelper the invoking PropertyHelper. + * @return true if this entity 'owns' the property. + */ + public boolean set( + String property, Object value, PropertyHelper propertyHelper) { + return current().set(property, value, propertyHelper); + } +} + + |