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[utils] / security / usermgt / src / main / java / org / wamblee / security / authorization / IsaOperationCondition.java

diff --git a/security/usermgt/src/main/java/org/wamblee/security/authorization/IsaOperationCondition.java b/security/usermgt/src/main/java/org/wamblee/security/authorization/IsaOperationCondition.java
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+++ b/security/usermgt/src/main/java/org/wamblee/security/authorization/IsaOperationCondition.java
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+/*
+ * Copyright 2005-2010 the original author or authors.
+ * 
+ * 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.
+ */ 
+package org.wamblee.security.authorization;
+
+import javax.persistence.Access;
+import javax.persistence.AccessType;
+import javax.persistence.Column;
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+
+/**
+ * Determiens if an operation is a subclass of a specified operation.
+ */
+@Entity
+@DiscriminatorValue("ISA")
+@Access(AccessType.PROPERTY)
+public class IsaOperationCondition extends AbstractOperationCondition {
+    /**
+     * Operation that the other operation must be a subclass of.
+     */
+    private Class<? extends Operation> operation;
+
+    /**
+     * Constructs the condition.
+     * 
+     * @param aOperation
+     *            Operation that an operation must be an instance of.
+     */
+    public IsaOperationCondition(Class<? extends Operation> aOperation) {
+        operation = aOperation;
+    }
+
+    /**
+     * For OR mapping.
+     * 
+     */
+    public IsaOperationCondition() {
+        operation = null;
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see
+     * org.wamblee.security.authorization.OperationCondition#matches(org.wamblee
+     * .security.authorization.Operation)
+     */
+    public boolean matches(Operation aOperation) {
+        return operation.isInstance(aOperation);
+    }
+
+    /**
+     * Gets the operation as a string. For OR mapping only.
+     * 
+     * @return Operation string.
+     */
+    @Column(name = "CLASSNAME")
+    protected String getOperationString() {
+        if (operation == null) {
+            return null;
+        }
+
+        return operation.getName();
+    }
+
+    /**
+     * Sets the operation as a string. For OR mapping only.
+     * 
+     * @param aOperation
+     *            Operation string.
+     * 
+     */
+    protected void setOperationString(String aOperation) {
+        if (aOperation == null) {
+            return;
+        }
+
+        try {
+            operation = (Class<? extends Operation>) Class.forName(aOperation);
+        } catch (Exception e) {
+            throw new IllegalArgumentException("Unknown class '" + aOperation +
+                "'");
+        }
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see java.lang.Object#toString()
+     */
+    @Override
+    public String toString() {
+        return "IsaOperationCondition(operation=" + operation.getName() + ")";
+    }
+}