/*
* Copyright 2012, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
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* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jf.dexlib2.immutable.value;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import org.jf.dexlib2.ValueType;
import org.jf.dexlib2.iface.value.*;
import org.jf.util.ExceptionWithContext;
import org.jf.util.ImmutableConverter;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
public class ImmutableEncodedValueFactory {
@Nonnull
public static ImmutableEncodedValue of(@Nonnull EncodedValue encodedValue) {
switch (encodedValue.getValueType()) {
case ValueType.BYTE:
return ImmutableByteEncodedValue.of((ByteEncodedValue)encodedValue);
case ValueType.SHORT:
return ImmutableShortEncodedValue.of((ShortEncodedValue)encodedValue);
case ValueType.CHAR:
return ImmutableCharEncodedValue.of((CharEncodedValue)encodedValue);
case ValueType.INT:
return ImmutableIntEncodedValue.of((IntEncodedValue)encodedValue);
case ValueType.LONG:
return ImmutableLongEncodedValue.of((LongEncodedValue)encodedValue);
case ValueType.FLOAT:
return ImmutableFloatEncodedValue.of((FloatEncodedValue)encodedValue);
case ValueType.DOUBLE:
return ImmutableDoubleEncodedValue.of((DoubleEncodedValue)encodedValue);
case ValueType.STRING:
return ImmutableStringEncodedValue.of((StringEncodedValue)encodedValue);
case ValueType.TYPE:
return ImmutableTypeEncodedValue.of((TypeEncodedValue)encodedValue);
case ValueType.FIELD:
return ImmutableFieldEncodedValue.of((FieldEncodedValue)encodedValue);
case ValueType.METHOD:
return ImmutableMethodEncodedValue.of((MethodEncodedValue)encodedValue);
case ValueType.ENUM:
return ImmutableEnumEncodedValue.of((EnumEncodedValue)encodedValue);
case ValueType.ARRAY:
return ImmutableArrayEncodedValue.of((ArrayEncodedValue)encodedValue);
case ValueType.ANNOTATION:
return ImmutableAnnotationEncodedValue.of((AnnotationEncodedValue)encodedValue);
case ValueType.NULL:
return ImmutableNullEncodedValue.INSTANCE;
case ValueType.BOOLEAN:
return ImmutableBooleanEncodedValue.of((BooleanEncodedValue)encodedValue);
default:
Preconditions.checkArgument(false);
return null;
}
}
@Nonnull
public static EncodedValue defaultValueForType(String type) {
switch (type.charAt(0)) {
case 'Z':
return ImmutableBooleanEncodedValue.FALSE_VALUE;
case 'B':
return new ImmutableByteEncodedValue((byte)0);
case 'S':
return new ImmutableShortEncodedValue((short)0);
case 'C':
return new ImmutableCharEncodedValue((char)0);
case 'I':
return new ImmutableIntEncodedValue(0);
case 'J':
return new ImmutableLongEncodedValue(0);
case 'F':
return new ImmutableFloatEncodedValue(0);
case 'D':
return new ImmutableDoubleEncodedValue(0);
case 'L':
case '[':
return ImmutableNullEncodedValue.INSTANCE;
default:
throw new ExceptionWithContext("Unrecognized type: %s", type);
}
}
@Nullable
public static ImmutableEncodedValue ofNullable(@Nullable EncodedValue encodedValue) {
if (encodedValue == null) {
return null;
}
return of(encodedValue);
}
@Nonnull
public static ImmutableList<ImmutableEncodedValue> immutableListOf
(@Nullable Iterable<? extends EncodedValue> list) {
return CONVERTER.toList(list);
}
private static final ImmutableConverter<ImmutableEncodedValue, EncodedValue> CONVERTER =
new ImmutableConverter<ImmutableEncodedValue, EncodedValue>() {
@Override
protected boolean isImmutable(@Nonnull EncodedValue item) {
return item instanceof ImmutableEncodedValue;
}
@Nonnull
@Override
protected ImmutableEncodedValue makeImmutable(@Nonnull EncodedValue item) {
return of(item);
}
};
}