TypeBase.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.    
 */
package org.apache.wink.common.internal.type;

public abstract class TypeBase extends JavaType {
    /**
     * Lazily initialized external representation of the type
     */
    volatile String _canonicalName;

    protected TypeBase(Class<?> raw, int hash) {
        super(raw, hash);
    }

    @Override
    public String toCanonical() {
        String str = _canonicalName;
        if (str == null) {
            str = buildCanonicalName();
        }
        return str;
    }

    protected abstract String buildCanonicalName();

    protected final JavaType copyHandlers(JavaType fromType) {
        _valueHandler = fromType.getValueHandler();
        _typeHandler = fromType.getTypeHandler();
        return this;
    }

    @Override
    public abstract StringBuilder getGenericSignature(StringBuilder sb);

    @Override
    public abstract StringBuilder getErasedSignature(StringBuilder sb);

    /*
    /**********************************************************
    /* Methods for sub-classes to use
    /**********************************************************
     */

    /**
     * @param trailingSemicolon Whether to add trailing semicolon for non-primitive
     *   (reference) types or not
     */
    protected static StringBuilder _classSignature(Class<?> cls, StringBuilder sb, boolean trailingSemicolon) {
        if (cls.isPrimitive()) {
            if (cls == Boolean.TYPE) {
                sb.append('Z');
            } else if (cls == Byte.TYPE) {
                sb.append('B');
            } else if (cls == Short.TYPE) {
                sb.append('S');
            } else if (cls == Character.TYPE) {
                sb.append('C');
            } else if (cls == Integer.TYPE) {
                sb.append('I');
            } else if (cls == Long.TYPE) {
                sb.append('J');
            } else if (cls == Float.TYPE) {
                sb.append('F');
            } else if (cls == Double.TYPE) {
                sb.append('D');
            } else if (cls == Void.TYPE) {
                sb.append('V');
            } else {
                throw new IllegalStateException("Unrecognized primitive type: " + cls.getName());
            }
        } else {
            sb.append('L');
            String name = cls.getName();
            for (int i = 0, len = name.length(); i < len; ++i) {
                char c = name.charAt(i);
                if (c == '.')
                    c = '/';
                sb.append(c);
            }
            if (trailingSemicolon) {
                sb.append(';');
            }
        }
        return sb;
    }
}