1 files changed, 90 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/TypeFound.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/TypeFound.java
new file mode 100644
index 00000000..f97c7f44
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/TypeFound.java
@@ -0,0 +1,90 @@
+/*
+ *  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.taskdefs.condition;
+
+import org.apache.tools.ant.AntTypeDefinition;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.ComponentHelper;
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.ProjectComponent;
+import org.apache.tools.ant.ProjectHelper;
+
+/**
+ * looks for a task or other Ant type that exists. Existence is defined as
+ * the type is defined, and its implementation class is present. This
+ * will work for datatypes and preset, script and macro definitions.
+ */
+public class TypeFound extends ProjectComponent implements Condition {
+
+    private String name;
+    private String uri;
+
+    /**
+     * the task or other type to look for
+     * @param name the name of the type
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * The URI for this definition.
+     * @param uri the namespace URI. If this is not set, use the
+     *            default ant namespace.
+     */
+    public void setURI(String uri) {
+        this.uri = uri;
+    }
+
+    /**
+     * test for a task or other ant type existing in the current project
+     * @param typename the name of the type
+     * @return true if the typename exists
+     */
+    protected boolean doesTypeExist(String typename) {
+
+        ComponentHelper helper =
+            ComponentHelper.getComponentHelper(getProject());
+        String componentName = ProjectHelper.genComponentName(uri, typename);
+        AntTypeDefinition def = helper.getDefinition(componentName);
+        if (def == null) {
+            return false;
+        }
+        //now verify that the class has an implementation
+        boolean found = def.getExposedClass(getProject()) != null;
+        if (!found) {
+            String text = helper.diagnoseCreationFailure(componentName, "type");
+            log(text, Project.MSG_VERBOSE);
+        }
+        return found;
+    }
+
+
+    /**
+     * Is this condition true?
+     * @return true if the condition is true
+     * @exception BuildException if an error occurs
+     */
+    public boolean eval() throws BuildException {
+        if (name == null) {
+            throw new BuildException("No type specified");
+        }
+        return doesTypeExist(name);
+    }
+}