Java AttachProvider.providers方法代码示例

import com.sun.tools.attach.spi.AttachProvider; //导入方法依赖的package包/类
/**
 * Attaches to a Java virtual machine.
 *
 * <p> This method obtains the list of attach providers by invoking the
 * {@link com.sun.tools.attach.spi.AttachProvider#providers()
 * AttachProvider.providers()} method. It then iterates overs the list
 * and invokes each provider's {@link
 * com.sun.tools.attach.spi.AttachProvider#attachVirtualMachine(java.lang.String)
 * attachVirtualMachine} method in turn. If a provider successfully
 * attaches then the iteration terminates, and the VirtualMachine created
 * by the provider that successfully attached is returned by this method.
 * If the <code>attachVirtualMachine</code> method of all providers throws
 * {@link com.sun.tools.attach.AttachNotSupportedException AttachNotSupportedException}
 * then this method also throws <code>AttachNotSupportedException</code>.
 * This means that <code>AttachNotSupportedException</code> is thrown when
 * the identifier provided to this method is invalid, or the identifier
 * corresponds to a Java virtual machine that does not exist, or none
 * of the providers can attach to it. This exception is also thrown if
 * {@link com.sun.tools.attach.spi.AttachProvider#providers()
 * AttachProvider.providers()} returns an empty list. </p>
 *
 * @param   id
 *          The abstract identifier that identifies the Java virtual machine.
 *
 * @return  A VirtualMachine representing the target VM.
 *
 * @throws  SecurityException
 *          If a security manager has been installed and it denies
 *          {@link com.sun.tools.attach.AttachPermission AttachPermission}
 *          <tt>("attachVirtualMachine")</tt>, or another permission
 *          required by the implementation.
 *
 * @throws  AttachNotSupportedException
 *          If the <code>attachVirtualmachine</code> method of all installed
 *          providers throws <code>AttachNotSupportedException</code>, or
 *          there aren't any providers installed.
 *
 * @throws  IOException
 *          If an I/O error occurs
 *
 * @throws  NullPointerException
 *          If <code>id</code> is <code>null</code>.
 */
public static VirtualMachine attach(String id)
    throws AttachNotSupportedException, IOException
{
    if (id == null) {
        throw new NullPointerException("id cannot be null");
    }
    List<AttachProvider> providers = AttachProvider.providers();
    if (providers.size() == 0) {
        throw new AttachNotSupportedException("no providers installed");
    }
    AttachNotSupportedException lastExc = null;
    for (AttachProvider provider: providers) {
        try {
            return provider.attachVirtualMachine(id);
        } catch (AttachNotSupportedException x) {
            lastExc = x;
        }
    }
    throw lastExc;
}
 

import com.sun.tools.attach.spi.AttachProvider; //导入方法依赖的package包/类
/**
 * Attaches to a Java virtual machine.
 *
 * <p> This method obtains the list of attach providers by invoking the
 * {@link com.sun.tools.attach.spi.AttachProvider#providers()
 * AttachProvider.providers()} method. It then iterates overs the list
 * and invokes each provider's {@link
 * com.sun.tools.attach.spi.AttachProvider#attachVirtualMachine(java.lang.String)
 * attachVirtualMachine} method in turn. If a provider successfully
 * attaches then the iteration terminates, and the VirtualMachine created
 * by the provider that successfully attached is returned by this method.
 * If the {@code attachVirtualMachine} method of all providers throws
 * {@link com.sun.tools.attach.AttachNotSupportedException AttachNotSupportedException}
 * then this method also throws {@code AttachNotSupportedException}.
 * This means that {@code AttachNotSupportedException} is thrown when
 * the identifier provided to this method is invalid, or the identifier
 * corresponds to a Java virtual machine that does not exist, or none
 * of the providers can attach to it. This exception is also thrown if
 * {@link com.sun.tools.attach.spi.AttachProvider#providers()
 * AttachProvider.providers()} returns an empty list. </p>
 *
 * @param   id
 *          The abstract identifier that identifies the Java virtual machine.
 *
 * @return  A VirtualMachine representing the target VM.
 *
 * @throws  SecurityException
 *          If a security manager has been installed and it denies
 *          {@link com.sun.tools.attach.AttachPermission AttachPermission}
 *          {@code ("attachVirtualMachine")}, or another permission
 *          required by the implementation.
 *
 * @throws  AttachNotSupportedException
 *          If the {@code attachVirtualmachine} method of all installed
 *          providers throws {@code AttachNotSupportedException}, or
 *          there aren't any providers installed.
 *
 * @throws  IOException
 *          If an I/O error occurs
 *
 * @throws  NullPointerException
 *          If {@code id} is {@code null}.
 */
public static VirtualMachine attach(String id)
    throws AttachNotSupportedException, IOException
{
    if (id == null) {
        throw new NullPointerException("id cannot be null");
    }
    List<AttachProvider> providers = AttachProvider.providers();
    if (providers.size() == 0) {
        throw new AttachNotSupportedException("no providers installed");
    }
    AttachNotSupportedException lastExc = null;
    for (AttachProvider provider: providers) {
        try {
            return provider.attachVirtualMachine(id);
        } catch (AttachNotSupportedException x) {
            lastExc = x;
        }
    }
    throw lastExc;
}
 

import com.sun.tools.attach.spi.AttachProvider; //导入方法依赖的package包/类
/**
 * Attaches to a Java virtual machine.
 * <p/>
 * This method obtains the list of attach providers by invoking the
 * {@link com.sun.tools.attach.spi.AttachProvider#providers() AttachProvider.providers()} method.
 * It then iterates overs the list and invokes each provider's {@link
 * com.sun.tools.attach.spi.AttachProvider#attachVirtualMachine(java.lang.String)
 * attachVirtualMachine} method in turn. If a provider successfully
 * attaches then the iteration terminates, and the VirtualMachine created
 * by the provider that successfully attached is returned by this method.
 * If the <code>attachVirtualMachine</code> method of all providers throws
 * {@link com.sun.tools.attach.AttachNotSupportedException AttachNotSupportedException}
 * then this method also throws <code>AttachNotSupportedException</code>.
 * This means that <code>AttachNotSupportedException</code> is thrown when
 * the identifier provided to this method is invalid, or the identifier
 * corresponds to a Java virtual machine that does not exist, or none
 * of the providers can attach to it. This exception is also thrown if
 * {@link com.sun.tools.attach.spi.AttachProvider#providers()
 * AttachProvider.providers()} returns an empty list. </p>
 *
 * @param id The abstract identifier that identifies the Java virtual machine.
 * @return A VirtualMachine representing the target VM.
 * @throws SecurityException           If a security manager has been installed and it denies
 *                                     {@link com.sun.tools.attach.AttachPermission AttachPermission}
 *                                     <tt>("attachVirtualMachine")</tt>, or another permission
 *                                     required by the implementation.
 * @throws IOException                 If an I/O error occurs
 */
public static VirtualMachine attach(String id) throws AttachNotSupportedException, IOException
{
   List<AttachProvider> providers = AttachProvider.providers();
   AttachNotSupportedException lastExc = null;

   for (AttachProvider provider : providers) {
      try {
         return provider.attachVirtualMachine(id);
      }
      catch (AttachNotSupportedException x) {
         lastExc = x;
      }
   }

   throw lastExc;
}
 

import com.sun.tools.attach.spi.AttachProvider; //导入方法依赖的package包/类
/**
 * Return a list of Java virtual machines.
 *
 * <p> This method returns a list of Java {@link
 * com.sun.tools.attach.VirtualMachineDescriptor} elements.
 * The list is an aggregation of the virtual machine
 * descriptor lists obtained by invoking the {@link
 * com.sun.tools.attach.spi.AttachProvider#listVirtualMachines
 * listVirtualMachines} method of all installed
 * {@link com.sun.tools.attach.spi.AttachProvider attach providers}.
 * If there are no Java virtual machines known to any provider
 * then an empty list is returned.
 *
 * @return  The list of virtual machine descriptors.
 */
public static List<VirtualMachineDescriptor> list() {
    ArrayList<VirtualMachineDescriptor> l =
        new ArrayList<VirtualMachineDescriptor>();
    List<AttachProvider> providers = AttachProvider.providers();
    for (AttachProvider provider: providers) {
        l.addAll(provider.listVirtualMachines());
    }
    return l;
}
 

import com.sun.tools.attach.spi.AttachProvider; //导入方法依赖的package包/类
/**
 * Return a list of Java virtual machines.
 * <p/>
 * This method returns a list of Java {@link com.sun.tools.attach.VirtualMachineDescriptor}
 * elements.  The list is an aggregation of the virtual machine descriptor lists obtained by
 * invoking the {@link com.sun.tools.attach.spi.AttachProvider#listVirtualMachines
 * listVirtualMachines} method of all installed {@link com.sun.tools.attach.spi.AttachProvider
 * attach providers}.  If there are no Java virtual machines known to any provider then an empty
 * list is returned.
 *
 * @return The list of virtual machine descriptors.
 */
public static List<VirtualMachineDescriptor> list()
{
   List<VirtualMachineDescriptor> l = new ArrayList<VirtualMachineDescriptor>();
   List<AttachProvider> providers = AttachProvider.providers();

   for (AttachProvider provider : providers) {
      l.addAll(provider.listVirtualMachines());
   }

   return l;
}