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Diffstat (limited to 'kamon-autoweave/src/main/java/com/sun/tools/attach/VirtualMachineDescriptor.java')
| -rw-r--r-- | kamon-autoweave/src/main/java/com/sun/tools/attach/VirtualMachineDescriptor.java | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/kamon-autoweave/src/main/java/com/sun/tools/attach/VirtualMachineDescriptor.java b/kamon-autoweave/src/main/java/com/sun/tools/attach/VirtualMachineDescriptor.java deleted file mode 100644 index 6459e806..00000000 --- a/kamon-autoweave/src/main/java/com/sun/tools/attach/VirtualMachineDescriptor.java +++ /dev/null @@ -1,208 +0,0 @@ -/* - * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Sun designates this - * particular file as subject to the "Classpath" exception as provided - * by Sun in the LICENSE file that accompanied this code. - * - * This code 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 - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - */ -package com.sun.tools.attach; - -import com.sun.tools.attach.spi.AttachProvider; - -/** - * Describes a Java virtual machine. - * <p/> - * <p> A <code>VirtualMachineDescriptor</code> is a container class used to - * describe a Java virtual machine. It encapsulates an identifier that identifies - * a target virtual machine, and a reference to the {@link - * com.sun.tools.attach.spi.AttachProvider AttachProvider} that should be used - * when attempting to attach to the virtual machine. The identifier is - * implementation-dependent but is typically the process identifier (or pid) - * environments where each Java virtual machine runs in its own operating system - * process. </p> - * <p/> - * <p> A <code>VirtualMachineDescriptor</code> also has a {@link #displayName() displayName}. - * The display name is typically a human readable string that a tool might - * display to a user. For example, a tool that shows a list of Java - * virtual machines running on a system might use the display name rather - * than the identifier. A <code>VirtualMachineDescriptor</code> may be - * created without a <i>display name</i>. In that case the identifier is - * used as the <i>display name</i>. - * <p/> - * <p> <code>VirtualMachineDescriptor</code> instances are typically created by - * invoking the {@link VirtualMachine#list VirtualMachine.list()} - * method. This returns the complete list of descriptors to describe the - * Java virtual machines known to all installed {@link - * com.sun.tools.attach.spi.AttachProvider attach providers}. - * - * @since 1.6 - */ -public final class VirtualMachineDescriptor -{ - private AttachProvider provider; - private String id; - private String displayName; - - private volatile int hash; // 0 => not computed - - /** - * Creates a virtual machine descriptor from the given components. - * - * @param provider The AttachProvider to attach to the Java virtual machine. - * @param id The virtual machine identifier. - * @param displayName The display name. - * @throws NullPointerException If any of the arguments are <code>null</code> - */ - public VirtualMachineDescriptor(AttachProvider provider, String id, String displayName) - { - if (provider == null) { - throw new NullPointerException("provider cannot be null"); - } - - if (id == null) { - throw new NullPointerException("identifier cannot be null"); - } - - if (displayName == null) { - throw new NullPointerException("display name cannot be null"); - } - - this.provider = provider; - this.id = id; - this.displayName = displayName; - } - - /** - * Creates a virtual machine descriptor from the given components. - * <p/> - * <p> This convenience constructor works as if by invoking the - * three-argument constructor as follows: - * <p/> - * <blockquote><tt> - * new {@link #VirtualMachineDescriptor(com.sun.tools.attach.spi.AttachProvider, String, String) - * VirtualMachineDescriptor}(provider, id, id); - * </tt></blockquote> - * <p/> - * <p> That is, it creates a virtual machine descriptor such that - * the <i>display name</i> is the same as the virtual machine - * identifier. - * - * @param provider The AttachProvider to attach to the Java virtual machine. - * @param id The virtual machine identifier. - * @throws NullPointerException If <tt>provider</tt> or <tt>id</tt> is <tt>null</tt>. - */ - public VirtualMachineDescriptor(AttachProvider provider, String id) - { - this(provider, id, id); - } - - /** - * Return the <code>AttachProvider</code> that this descriptor references. - * - * @return The <code>AttachProvider</code> that this descriptor references. - */ - public AttachProvider provider() - { - return provider; - } - - /** - * Return the identifier component of this descriptor. - * - * @return The identifier component of this descriptor. - */ - public String id() - { - return id; - } - - /** - * Return the <i>display name</i> component of this descriptor. - * - * @return The display name component of this descriptor. - */ - public String displayName() - { - return displayName; - } - - /** - * Returns a hash-code value for this VirtualMachineDescriptor. The hash - * code is based upon the descriptor's components, and satisfies - * the general contract of the Object.hashCode method. - * - * @return A hash-code value for this descriptor. - */ - public int hashCode() - { - if (hash != 0) { - return hash; - } - - hash = provider.hashCode() * 127 + id.hashCode(); - return hash; - } - - /** - * Tests this VirtualMachineDescriptor for equality with another object. - * <p/> - * <p> If the given object is not a VirtualMachineDescriptor then this - * method returns <tt>false</tt>. For two VirtualMachineDescriptors to - * be considered equal requires that they both reference the same - * provider, and their {@link #id() identifiers} are equal. </p> - * <p/> - * <p> This method satisfies the general contract of the {@link - * Object#equals(Object) Object.equals} method. </p> - * - * @param ob The object to which this object is to be compared - * @return <tt>true</tt> if, and only if, the given object is - * a VirtualMachineDescriptor that is equal to this - * VirtualMachineDescriptor. - */ - public boolean equals(Object ob) - { - if (ob == this) - return true; - if (!(ob instanceof VirtualMachineDescriptor)) - return false; - VirtualMachineDescriptor other = (VirtualMachineDescriptor) ob; - if (other.provider() != this.provider()) { - return false; - } - if (!other.id().equals(this.id())) { - return false; - } - return true; - } - - /** - * Returns the string representation of the <code>VirtualMachineDescriptor</code>. - */ - public String toString() - { - String s = provider.toString() + ": " + id; - - if (displayName != id) { - s += " " + displayName; - } - - return s; - } -} |