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1 files changed, 240 insertions, 0 deletions

diff --git a/libjava/classpath/javax/management/openmbean/OpenMBeanOperationInfoSupport.java b/libjava/classpath/javax/management/openmbean/OpenMBeanOperationInfoSupport.java
new file mode 100644
index 000000000..992df344a
--- /dev/null
+++ b/libjava/classpath/javax/management/openmbean/OpenMBeanOperationInfoSupport.java
@@ -0,0 +1,240 @@
+/* OpenMBeanOperationInfoSupport.java -- Open typed info about an operation.
+   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.management.openmbean;
+
+import java.util.Arrays;
+
+import javax.management.MBeanOperationInfo;
+import javax.management.MBeanParameterInfo;
+
+/**
+ * Describes a operation for an open management bean.
+ *
+ * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
+ * @since 1.5
+ */
+public class OpenMBeanOperationInfoSupport
+  extends MBeanOperationInfo
+  implements OpenMBeanOperationInfo
+{
+
+  /**
+   * Compatible with JDK 1.5
+   */
+  private static final long serialVersionUID = 4996859732565369366L;
+
+  /**
+   * The open type representing the return value.
+   */
+  private OpenType<?> returnOpenType;
+
+  /**
+   * The hash code of this instance.
+   */
+  private transient Integer hashCode;
+
+  /**
+   * The <code>toString()</code> result of this instance.
+   */
+  private transient String string;
+
+  /**
+   * Constructs a @link{OpenMBeanOperationInfo} with the specified name,
+   * description, parameter information, open return type and impact. A
+   * <code>null</code> value for the parameter information is the same
+   * as passing in an empty array.  A copy of the parameter array is
+   * taken, so later changes have no effect.  The name and the
+   * description may not be equal to the empty string, and neither
+   * the name, description nor the open return type may be
+   * <code>null</code>.  The value of <code>impact</code> must be
+   * one of the four valid values
+   * ({@link javax.management.MBeanOperationInfo#INFO},
+   * {@link javax.management.MBeanOperationInfo#ACTION},
+   * {@link javax.management.MBeanOperationInfo#ACTION_INFO} and
+   * {@link javax.management.MBeanOperationInfo#UNKNOWN}).
+   *
+   *
+   * @param name the name of the constructor.
+   * @param desc a description of the attribute.
+   * @param sig the signature of the method, as a series
+   *            of {@link MBeanParameterInfo} objects, one for
+   *            each parameter.
+   * @param type the open return type of the method.
+   * @param impact the impact of performing the operation.
+   * @throws IllegalArgumentException if the name, description or
+   *                                  open return type is <code>null</code>,
+   *                                  the name or description are equal to
+   *                                  the empty string, or the impact factor
+   *                                  is not one of the values enumerated
+   *                                  above.
+   * @throws ArrayStoreException if the members of the signature array
+   *                             are not assignable to
+   *                             {@link javax.management.MBeanParameterInfo}
+   */
+  public OpenMBeanOperationInfoSupport(String name, String desc,
+                                       OpenMBeanParameterInfo[] sig,
+                                       OpenType<?> type, int impact)
+  {
+    super(name, desc, (MBeanParameterInfo[]) sig,
+          type == null ? null : type.getClassName(), impact);
+    if (name == null)
+      throw new IllegalArgumentException("The name may not be null.");
+    if (desc == null)
+      throw new IllegalArgumentException("The description may not be null.");
+    if (type == null)
+      throw new IllegalArgumentException("The type may not be null.");
+    if (name.length() == 0)
+      throw new IllegalArgumentException("The name may not be the empty string.");
+    if (desc.length() == 0)
+      throw new IllegalArgumentException("The description may not be the " +
+                                         "empty string.");
+    if (impact != ACTION && impact != INFO &&
+        impact != ACTION_INFO && impact != UNKNOWN)
+      throw new IllegalArgumentException("The impact factor is an invalid value.");
+    returnOpenType = type;
+  }
+
+  /**
+   * Compares this attribute with the supplied object.  This returns
+   * true iff the object is an instance of {@link OpenMBeanOperationInfo}
+   * with an equal name, signature, open return type and impact.
+   *
+   * @param obj the object to compare.
+   * @return true if the object is a {@link OpenMBeanParameterInfo}
+   *         instance,
+   *         <code>name.equals(object.getName())</code>,
+   *         <code>signature.equals(object.getSignature())</code>,
+   *         <code>returnOpenType.equals(object.getReturnOpenType())</code>,
+   *         and <code>impact == object.getImpact()</code>.
+   */
+  public boolean equals(Object obj)
+  {
+    if (!(obj instanceof OpenMBeanOperationInfo))
+      return false;
+    OpenMBeanOperationInfo o = (OpenMBeanOperationInfo) obj;
+    return getName().equals(o.getName()) &&
+      getSignature().equals(o.getSignature()) &&
+      returnOpenType.equals(o.getReturnOpenType()) &&
+      getImpact() == o.getImpact();
+  }
+
+  /**
+   * Returns the open type instance which represents the type of the
+   * return value.
+   *
+   * @return the open type of the return value.
+   */
+  public OpenType<?> getReturnOpenType()
+  {
+    return returnOpenType;
+  }
+
+  /**
+   * <p>
+   * Returns the hashcode of the operation information as the sum of
+   * the hashcodes of the name, open return type, impact and signature
+   * (calculated by
+   * <code>java.util.Arrays.asList(signature).hashCode()</code>).
+   * </p>
+   * <p>
+   * As instances of this class are immutable, the return value
+   * is computed just once for each instance and reused
+   * throughout its life.
+   * </p>
+   *
+   * @return the hashcode of the operation information.
+   */
+  public int hashCode()
+  {
+    if (hashCode == null)
+      hashCode = Integer.valueOf(getName().hashCode() +
+                                 returnOpenType.hashCode() +
+                                 Integer.valueOf(getImpact()).hashCode() +
+                                 Arrays.asList(getSignature()).hashCode());
+    return hashCode.intValue();
+  }
+
+  /**
+   * <p>
+   * Returns a textual representation of this instance.  This
+   * is constructed using the class name
+   * (<code>javax.management.openmbean.OpenMBeanOperationInfo</code>)
+   * along with the name, signature, open return type and impact.
+   * </p>
+   * <p>
+   * As instances of this class are immutable, the return value
+   * is computed just once for each instance and reused
+   * throughout its life.
+   * </p>
+   *
+   * @return a @link{java.lang.String} instance representing
+   *         the instance in textual form.
+   */
+  public String toString()
+  {
+    if (string == null)
+      {
+        String impactString;
+        switch (getImpact())
+          {
+          case INFO:
+            impactString = "INFO";
+            break;
+          case ACTION:
+            impactString = "ACTION";
+            break;
+          case ACTION_INFO:
+            impactString = "ACTION_INFO";
+            break;
+          case UNKNOWN:
+            impactString = "UNKNOWN";
+            break;
+          default:
+            impactString = "ERRONEOUS VALUE";
+          }
+        string = getClass().getName()
+          + "[name=" + getName()
+          + ",signature=" + Arrays.toString(getSignature())
+          + ",returnOpenType=" + returnOpenType
+          + ",impact=" + impactString
+          + "]";
+      }
+    return string;
+  }
+
+}