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/*
 * Copyright 2010-2011 Craig S. Dickson (http://craigsdickson.com)
 *
 * Licensed 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 com.squeakysand.jcr;

import javax.jcr.RepositoryException;
import javax.jcr.Value;
import javax.jcr.ValueFormatException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class SimpleValue implements Value {

    private static final Logger LOG = LoggerFactory.getLogger(SimpleNode.class);

    public static SimpleValue asSimpleValue(Value value) {
        SimpleValue result = null;
        try {
            if (value != null) {
                if (value instanceof SimpleValue) {
                    result = (SimpleValue) value;
                } else {
                    SimpleProperty.Type type = SimpleProperty.Type.getType(value.getType());
                    switch (type) {
                        case STRING:
                            String stringValue = value.getString();
                            result = new StringValue(stringValue);
                            break;
                        default:

                    }
                }
            }
        } catch (ValueFormatException e) {
            LOG.error(e.getMessage(), e);
        } catch (IllegalStateException e) {
            LOG.error(e.getMessage(), e);
        } catch (RepositoryException e) {
            LOG.error(e.getMessage(), e);
        }
        return result;
    }

    private SimpleProperty.Type type;

    public SimpleValue(SimpleProperty.Type type) {
        this.type = type;
    }

    @Override
    public int getType() {
        return type.getId();
    }

    @Override
    public boolean equals(Object obj) {
        boolean result = false;
        if (obj != null && obj instanceof Value) {
            SimpleValue otherValue = SimpleValue.asSimpleValue((Value)obj);
            if (type == otherValue.type) {
                try {
                    if (getString().equals(otherValue.getString())) {
                        result = true;
                    }
                } catch (ValueFormatException e) {
                    LOG.error(e.getMessage(), e);
                } catch (IllegalStateException e) {
                    LOG.error(e.getMessage(), e);
                } catch (RepositoryException e) {
                    LOG.error(e.getMessage(), e);
                }
            }
        }
        return result;
    }

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 41 * hash + (this.type != null ? this.type.hashCode() : 0);
        return hash;
    }

}