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      1 /*
      2  * Copyright 2012, Google Inc.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 package org.jf.dexlib2.immutable.value;
     33 
     34 import com.google.common.collect.ImmutableSet;
     35 import org.jf.dexlib2.base.value.BaseAnnotationEncodedValue;
     36 import org.jf.dexlib2.iface.AnnotationElement;
     37 import org.jf.dexlib2.iface.value.AnnotationEncodedValue;
     38 import org.jf.dexlib2.immutable.ImmutableAnnotationElement;
     39 import org.jf.util.ImmutableUtils;
     40 
     41 import javax.annotation.Nonnull;
     42 import javax.annotation.Nullable;
     43 import java.util.Collection;
     44 
     45 public class ImmutableAnnotationEncodedValue extends BaseAnnotationEncodedValue implements ImmutableEncodedValue {
     46     @Nonnull protected final String type;
     47     @Nonnull protected final ImmutableSet<? extends ImmutableAnnotationElement> elements;
     48 
     49     public ImmutableAnnotationEncodedValue(@Nonnull String type,
     50                                            @Nullable Collection<? extends AnnotationElement> elements) {
     51         this.type = type;
     52         this.elements = ImmutableAnnotationElement.immutableSetOf(elements);
     53     }
     54 
     55     public ImmutableAnnotationEncodedValue(@Nonnull String type,
     56                                            @Nullable ImmutableSet<? extends ImmutableAnnotationElement> elements) {
     57         this.type = type;
     58         this.elements = ImmutableUtils.nullToEmptySet(elements);
     59     }
     60 
     61     public static ImmutableAnnotationEncodedValue of(AnnotationEncodedValue annotationEncodedValue) {
     62         if (annotationEncodedValue instanceof ImmutableAnnotationEncodedValue) {
     63             return (ImmutableAnnotationEncodedValue)annotationEncodedValue;
     64         }
     65         return new ImmutableAnnotationEncodedValue(
     66                 annotationEncodedValue.getType(),
     67                 annotationEncodedValue.getElements());
     68     }
     69 
     70     @Nonnull @Override public String getType() { return type; }
     71     @Nonnull @Override public ImmutableSet<? extends ImmutableAnnotationElement> getElements() { return elements; }
     72 }
     73