/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package examples;
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import java.io.IOException;
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import javax.servlet.jsp.JspException;
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import javax.servlet.jsp.JspTagException;
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import javax.servlet.jsp.JspWriter;
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import javax.servlet.jsp.tagext.TagSupport;
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/**
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* Accept and display a value.
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*/
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public class ValuesTag extends TagSupport {
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private static final long serialVersionUID = 1L;
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// Using "-1" as the default value,
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// in the assumption that it won't be used as the value.
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// Cannot use null here, because null is an important case
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// that should be present in the tests.
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private Object objectValue = "-1";
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private String stringValue = "-1";
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private long longValue = -1;
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private double doubleValue = -1;
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public void setObject(Object objectValue) {
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this.objectValue = objectValue;
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}
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public void setString(String stringValue) {
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this.stringValue = stringValue;
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}
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public void setLong(long longValue) {
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this.longValue = longValue;
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}
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public void setDouble(double doubleValue) {
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this.doubleValue = doubleValue;
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}
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@Override
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public int doEndTag() throws JspException {
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JspWriter out = pageContext.getOut();
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try {
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if (!"-1".equals(objectValue)) {
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out.print(objectValue);
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} else if (!"-1".equals(stringValue)) {
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out.print(stringValue);
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} else if (longValue != -1) {
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out.print(longValue);
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} else if (doubleValue != -1) {
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out.print(doubleValue);
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} else {
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out.print("-1");
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}
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} catch (IOException ex) {
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throw new JspTagException("IOException: " + ex.toString(), ex);
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}
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return super.doEndTag();
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}
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}
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