jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/oracle/webservices/internal/api/message/BasePropertySet.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/oracle/webservices/internal/api/message/BasePropertySet.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/oracle/webservices/internal/api/message/BasePropertySet.java

Thu, 31 Aug 2017 15:18:52 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:18:52 +0800
changeset 637: 9c07ef4934dd
parent 374: 72e03566f0a6
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. 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.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.oracle.webservices.internal.api.message;
 import com.sun.istack.internal.NotNull;
 import com.sun.istack.internal.Nullable;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 import java.util.AbstractMap;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 /**
  * A set of "properties" that can be accessed via strongly-typed fields
  * as well as reflexibly through the property name.
  *
  * @author Kohsuke Kawaguchi
  */
 @SuppressWarnings("SuspiciousMethodCalls")
 public abstract class BasePropertySet implements PropertySet {
     /**
      * Creates a new instance of TypedMap.
      */
     protected BasePropertySet() {
     }
     private Map<String,Object> mapView;
     /**
      * Represents the list of strongly-typed known properties
      * (keyed by property names.)
      *
      * <p>
      * Just giving it an alias to make the use of this class more fool-proof.
      */
     protected static class PropertyMap extends HashMap<String,Accessor> {
         // the entries are often being iterated through so performance can be improved
         // by their caching instead of iterating through the original (immutable) map each time
         transient PropertyMapEntry[] cachedEntries = null;
         PropertyMapEntry[] getPropertyMapEntries() {
             if (cachedEntries == null) {
                 cachedEntries = createPropertyMapEntries();
             }
             return cachedEntries;
         }
         private PropertyMapEntry[] createPropertyMapEntries() {
             final PropertyMapEntry[] modelEntries = new PropertyMapEntry[size()];
             int i = 0;
             for (final Entry<String, Accessor> e : entrySet()) {
                 modelEntries[i++] = new PropertyMapEntry(e.getKey(), e.getValue());
             }
             return modelEntries;
         }
     }
     /**
      * PropertyMapEntry represents a Map.Entry in the PropertyMap with more efficient access.
      */
     static public class PropertyMapEntry {
         public PropertyMapEntry(String k, Accessor v) {
             key = k; value = v;
         }
         String key;
         Accessor value;
     }
     /**
      * Map representing the Fields and Methods annotated with {@link PropertySet.Property}.
      * Model of {@link PropertySet} class.
      *
      * <p>
      * At the end of the derivation chain this method just needs to be implemented
      * as:
      *
      * <pre>
      * private static final PropertyMap model;
      * static {
      *   model = parse(MyDerivedClass.class);
      * }
      * protected PropertyMap getPropertyMap() {
      *   return model;
      * }
      * </pre>
      */
     protected abstract PropertyMap getPropertyMap();
     /**
      * This method parses a class for fields and methods with {@link PropertySet.Property}.
      */
     protected static PropertyMap parse(final Class clazz) {
         // make all relevant fields and methods accessible.
         // this allows runtime to skip the security check, so they runs faster.
         return AccessController.doPrivileged(new PrivilegedAction<PropertyMap>() {
             @Override
             public PropertyMap run() {
                 PropertyMap props = new PropertyMap();
                 for (Class c=clazz; c!=null; c=c.getSuperclass()) {
                     for (Field f : c.getDeclaredFields()) {
                         Property cp = f.getAnnotation(Property.class);
                         if(cp!=null) {
                             for(String value : cp.value()) {
                                 props.put(value, new FieldAccessor(f, value));
                             }
                         }
                     }
                     for (Method m : c.getDeclaredMethods()) {
                         Property cp = m.getAnnotation(Property.class);
                         if(cp!=null) {
                             String name = m.getName();
                             assert name.startsWith("get") || name.startsWith("is");
                             String setName = name.startsWith("is") ? "set"+name.substring(2) : // isFoo -> setFoo
                                                                      's'  +name.substring(1);  // getFoo -> setFoo
                             Method setter;
                             try {
                                 setter = clazz.getMethod(setName,m.getReturnType());
                             } catch (NoSuchMethodException e) {
                                 setter = null; // no setter
                             }
                             for(String value : cp.value()) {
                                 props.put(value, new MethodAccessor(m, setter, value));
                             }
                         }
                     }
                 }
                 return props;
             }
         });
     }
     /**
      * Represents a typed property defined on a {@link PropertySet}.
      */
     protected interface Accessor {
         String getName();
         boolean hasValue(PropertySet props);
         Object get(PropertySet props);
         void set(PropertySet props, Object value);
     }
     static final class FieldAccessor implements Accessor {
         /**
          * Field with the annotation.
          */
         private final Field f;
         /**
          * One of the values in {@link Property} annotation on {@link #f}.
          */
         private final String name;
         protected FieldAccessor(Field f, String name) {
             this.f = f;
             f.setAccessible(true);
             this.name = name;
         }
         @Override
         public String getName() {
             return name;
         }
         @Override
         public boolean hasValue(PropertySet props) {
             return get(props)!=null;
         }
         @Override
         public Object get(PropertySet props) {
             try {
                 return f.get(props);
             } catch (IllegalAccessException e) {
                 throw new AssertionError();
             }
         }
         @Override
         public void set(PropertySet props, Object value) {
             try {
                 f.set(props,value);
             } catch (IllegalAccessException e) {
                 throw new AssertionError();
             }
         }
     }
     static final class MethodAccessor implements Accessor {
         /**
          * Getter method.
          */
         private final @NotNull Method getter;
         /**
          * Setter method.
          * Some property is read-only.
          */
         private final @Nullable Method setter;
         /**
          * One of the values in {@link Property} annotation on {@link #getter}.
          */
         private final String name;
         protected MethodAccessor(Method getter, Method setter, String value) {
             this.getter = getter;
             this.setter = setter;
             this.name = value;
             getter.setAccessible(true);
             if (setter!=null) {
                 setter.setAccessible(true);
             }
         }
         @Override
         public String getName() {
             return name;
         }
         @Override
         public boolean hasValue(PropertySet props) {
             return get(props)!=null;
         }
         @Override
         public Object get(PropertySet props) {
             try {
                 return getter.invoke(props);
             } catch (IllegalAccessException e) {
                 throw new AssertionError();
             } catch (InvocationTargetException e) {
                 handle(e);
                 return 0;   // never reach here
             }
         }
         @Override
         public void set(PropertySet props, Object value) {
             if(setter==null) {
                 throw new ReadOnlyPropertyException(getName());
             }
             try {
                 setter.invoke(props,value);
             } catch (IllegalAccessException e) {
                 throw new AssertionError();
             } catch (InvocationTargetException e) {
                 handle(e);
             }
         }
         /**
          * Since we don't expect the getter/setter to throw a checked exception,
          * it should be possible to make the exception propagation transparent.
          * That's what we are trying to do here.
          */
         private Exception handle(InvocationTargetException e) {
             Throwable t = e.getTargetException();
             if (t instanceof Error) {
                 throw (Error)t;
             }
             if (t instanceof RuntimeException) {
                 throw (RuntimeException)t;
             }
             throw new Error(e);
         }
     }
     /**
      * Class allowing to work with PropertySet object as with a Map; it doesn't only allow to read properties from
      * the map but also to modify the map in a way it is in sync with original strongly typed fields. It also allows
      * (if necessary) to store additional properties those can't be found in strongly typed fields.
      *
      * @see com.sun.xml.internal.ws.api.PropertySet#asMap() method
      */
     final class MapView extends HashMap<String, Object> {
         // flag if it should allow store also different properties
         // than the from strongly typed fields
         boolean extensible;
         MapView(boolean extensible) {
                 super(getPropertyMap().getPropertyMapEntries().length);
             this.extensible = extensible;
             initialize();
         }
         public void initialize() {
             // iterate (cached) array instead of map to speed things up ...
             PropertyMapEntry[] entries = getPropertyMap().getPropertyMapEntries();
             for (PropertyMapEntry entry : entries) {
                 super.put(entry.key, entry.value);
             }
         }
         @Override
         public Object get(Object key) {
             Object o = super.get(key);
             if (o instanceof Accessor) {
                 return ((Accessor) o).get(BasePropertySet.this);
             } else {
                 return o;
             }
         }
         @Override
         public Set<Entry<String, Object>> entrySet() {
             Set<Entry<String, Object>> entries = new HashSet<Entry<String, Object>>();
             for (String key : keySet()) {
                 entries.add(new SimpleImmutableEntry<String, Object>(key, get(key)));
             }
             return entries;
         }
         @Override
         public Object put(String key, Object value) {
             Object o = super.get(key);
             if (o != null && o instanceof Accessor) {
                 Object oldValue = ((Accessor) o).get(BasePropertySet.this);
                 ((Accessor) o).set(BasePropertySet.this, value);
                 return oldValue;
             } else {
                 if (extensible) {
                     return super.put(key, value);
                 } else {
                     throw new IllegalStateException("Unknown property [" + key + "] for PropertySet [" +
                             BasePropertySet.this.getClass().getName() + "]");
                 }
             }
         }
         @Override
         public void clear() {
             for (String key : keySet()) {
                 remove(key);
             }
         }
         @Override
         public Object remove(Object key) {
             Object o;
             o = super.get(key);
             if (o instanceof Accessor) {
                 ((Accessor)o).set(BasePropertySet.this, null);
             }
             return super.remove(key);
         }
     }
     @Override
     public boolean containsKey(Object key) {
         Accessor sp = getPropertyMap().get(key);
         if (sp != null) {
             return sp.get(this) != null;
         }
         return false;
     }
     /**
      * Gets the name of the property.
      *
      * @param key
      *      This field is typed as {@link Object} to follow the {@link Map#get(Object)}
      *      convention, but if anything but {@link String} is passed, this method
      *      just returns null.
      */
     @Override
     public Object get(Object key) {
         Accessor sp = getPropertyMap().get(key);
         if (sp != null) {
             return sp.get(this);
         }
         throw new IllegalArgumentException("Undefined property "+key);
     }
     /**
      * Sets a property.
      *
      * <h3>Implementation Note</h3>
      * This method is slow. Code inside JAX-WS should define strongly-typed
      * fields in this class and access them directly, instead of using this.
      *
      * @throws ReadOnlyPropertyException
      *      if the given key is an alias of a strongly-typed field,
      *      and if the name object given is not assignable to the field.
      *
      * @see Property
      */
     @Override
     public Object put(String key, Object value) {
         Accessor sp = getPropertyMap().get(key);
         if(sp!=null) {
             Object old = sp.get(this);
             sp.set(this,value);
             return old;
         } else {
             throw new IllegalArgumentException("Undefined property "+key);
         }
     }
     /**
      * Checks if this {@link PropertySet} supports a property of the given name.
      */
     @Override
     public boolean supports(Object key) {
         return getPropertyMap().containsKey(key);
     }
     @Override
     public Object remove(Object key) {
         Accessor sp = getPropertyMap().get(key);
         if(sp!=null) {
             Object old = sp.get(this);
             sp.set(this,null);
             return old;
         } else {
             throw new IllegalArgumentException("Undefined property "+key);
         }
     }
     /**
      * Creates a {@link Map} view of this {@link PropertySet}.
      *
      * <p>
      * This map is partially live, in the sense that values you set to it
      * will be reflected to {@link PropertySet}.
      *
      * <p>
      * However, this map may not pick up changes made
      * to {@link PropertySet} after the view is created.
      *
      * @deprecated use newer implementation {@link PropertySet#asMap()} which produces
      * readwrite {@link Map}
      *
      * @return
      *      always non-null valid instance.
      */
     @Deprecated
     @Override
     public final Map<String,Object> createMapView() {
         final Set<Entry<String,Object>> core = new HashSet<Entry<String,Object>>();
         createEntrySet(core);
         return new AbstractMap<String, Object>() {
             @Override
             public Set<Entry<String,Object>> entrySet() {
                 return core;
             }
         };
     }
     /**
      * Creates a modifiable {@link Map} view of this {@link PropertySet}.
      * <p/>
      * Changes done on this {@link Map} or on {@link PropertySet} object work in both directions - values made to
      * {@link Map} are reflected to {@link PropertySet} and changes done using getters/setters on {@link PropertySet}
      * object are automatically reflected in this {@link Map}.
      * <p/>
      * If necessary, it also can hold other values (not present on {@link PropertySet}) -
      * {@see PropertySet#mapAllowsAdditionalProperties}
      *
      * @return always non-null valid instance.
      */
     @Override
     public Map<String, Object> asMap() {
         if (mapView == null) {
             mapView = createView();
         }
         return mapView;
     }
     protected Map<String, Object> createView() {
         return new MapView(mapAllowsAdditionalProperties());
     }
     /**
      * Used when constructing the {@link MapView} for this object - it controls if the {@link MapView} servers only to
      * access strongly typed values or allows also different values
      *
      * @return true if {@link Map} should allow also properties not defined as strongly typed fields
      */
     protected boolean mapAllowsAdditionalProperties() {
         return false;
     }
     protected void createEntrySet(Set<Entry<String,Object>> core) {
         for (final Entry<String, Accessor> e : getPropertyMap().entrySet()) {
             core.add(new Entry<String, Object>() {
                 @Override
                 public String getKey() {
                     return e.getKey();
                 }
                 @Override
                 public Object getValue() {
                     return e.getValue().get(BasePropertySet.this);
                 }
                 @Override
                 public Object setValue(Object value) {
                     Accessor acc = e.getValue();
                     Object old = acc.get(BasePropertySet.this);
                     acc.set(BasePropertySet.this,value);
                     return old;
                 }
             });
         }
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/oracle/webservices/internal/api/message/BasePropertySet.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/oracle/webservices/internal/api/message/BasePropertySet.java