001: package org.apache.turbine.services.intake.model;
002:
003: /*
004: * Licensed to the Apache Software Foundation (ASF) under one
005: * or more contributor license agreements. See the NOTICE file
006: * distributed with this work for additional information
007: * regarding copyright ownership. The ASF licenses this file
008: * to you under the Apache License, Version 2.0 (the
009: * "License"); you may not use this file except in compliance
010: * with the License. You may obtain a copy of the License at
011: *
012: * http://www.apache.org/licenses/LICENSE-2.0
013: *
014: * Unless required by applicable law or agreed to in writing,
015: * software distributed under the License is distributed on an
016: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017: * KIND, either express or implied. See the License for the
018: * specific language governing permissions and limitations
019: * under the License.
020: */
021:
022: import org.apache.commons.lang.StringUtils;
023:
024: import org.apache.turbine.services.intake.IntakeException;
025: import org.apache.turbine.services.intake.validator.ShortValidator;
026: import org.apache.turbine.services.intake.xmlmodel.XmlField;
027:
028: /**
029: * Processor for short fields.
030: *
031: * @author <a href="mailto:jmcnally@collab.net>John McNally</a>
032: * @author <a href="mailto:Colin.Chalmers@maxware.nl">Colin Chalmers</a>
033: * @version $Id: ShortField.java 534527 2007-05-02 16:10:59Z tv $
034: */
035: public class ShortField extends Field {
036: /**
037: * Constructor.
038: *
039: * @param field xml field definition object
040: * @param group xml group definition object
041: * @throws IntakeException thrown by superclass
042: */
043: public ShortField(XmlField field, Group group)
044: throws IntakeException {
045: super (field, group);
046: }
047:
048: /**
049: * Sets the default value for an Short Field
050: *
051: * @param prop Parameter for the default values
052: */
053: public void setDefaultValue(String prop) {
054: defaultValue = null;
055:
056: if (prop == null) {
057: return;
058: }
059:
060: defaultValue = new Short(prop);
061: }
062:
063: /**
064: * Set the empty Value. This value is used if Intake
065: * maps a field to a parameter returned by the user and
066: * the corresponding field is either empty (empty string)
067: * or non-existant.
068: *
069: * @param prop The value to use if the field is empty.
070: */
071: public void setEmptyValue(String prop) {
072: emptyValue = null;
073:
074: if (prop == null) {
075: return;
076: }
077:
078: emptyValue = new Short(prop);
079: }
080:
081: /**
082: * Provides access to emptyValue such that the value returned will be
083: * acceptable as an argument parameter to Method.invoke. Subclasses
084: * that deal with primitive types should ensure that they return an
085: * appropriate value wrapped in the object wrapper class for the
086: * primitive type.
087: *
088: * @return the value to use when the field is empty or an Object that
089: * wraps the empty value for primitive types.
090: */
091: protected Object getSafeEmptyValue() {
092: if (isMultiValued) {
093: return new short[0];
094: } else {
095: return (null == getEmptyValue()) ? new Short((short) 0)
096: : getEmptyValue();
097: }
098: }
099:
100: /**
101: * A suitable validator.
102: *
103: * @return A suitable validator
104: */
105: protected String getDefaultValidator() {
106: return ShortValidator.class.getName();
107: }
108:
109: /**
110: * Sets the value of the field from data in the parser.
111: */
112: protected void doSetValue() {
113: if (isMultiValued) {
114: String[] inputs = parser.getStrings(getKey());
115: short[] values = new short[inputs.length];
116: for (int i = 0; i < inputs.length; i++) {
117: values[i] = StringUtils.isNotEmpty(inputs[i]) ? new Short(
118: inputs[i]).shortValue()
119: : ((Short) getEmptyValue()).shortValue();
120: }
121: setTestValue(values);
122: } else {
123: String val = parser.getString(getKey());
124: setTestValue(StringUtils.isNotEmpty(val) ? new Short(val)
125: : (Short) getEmptyValue());
126: }
127: }
128:
129: }
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