Source Code Cross Referenced for OpenMBeanParameterInfoSupport.java in  » JMX » mx4j » javax » management » openmbean » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » JMX » mx4j » javax.management.openmbean 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Copyright (C) The MX4J Contributors.
003:         * All rights reserved.
004:         *
005:         * This software is distributed under the terms of the MX4J License version 1.0.
006:         * See the terms of the MX4J License in the documentation provided with this software.
007:         */package javax.management.openmbean;
008:
009:        import java.io.Serializable;
010:        import java.util.Collections;
011:        import java.util.HashSet;
012:        import java.util.Set;
013:        import javax.management.MBeanParameterInfo;
014:
015:        /**
016:         * @version $Revision: 1.9 $
017:         */
018:        public class OpenMBeanParameterInfoSupport extends MBeanParameterInfo
019:                implements  OpenMBeanParameterInfo, Serializable {
020:            private static final long serialVersionUID = -7235016873758443122L;
021:
022:            private OpenType openType = null;
023:            private Object defaultValue = null;
024:            private Set legalValues = null;
025:            private Comparable minValue = null;
026:            private Comparable maxValue = null;
027:
028:            private transient int m_hashcode = 0;
029:
030:            public OpenMBeanParameterInfoSupport(String name,
031:                    String description, OpenType openType) {
032:                super (name, openType == null ? "" : openType.getClassName(),
033:                        description);
034:                if (name == null || name.trim().length() == 0)
035:                    throw new IllegalArgumentException(
036:                            "name parameter cannot be null or an empty string.");
037:                if (description == null || description.trim().length() == 0)
038:                    throw new IllegalArgumentException(
039:                            "description parameter cannot be null or an empty string.");
040:                if (openType == null)
041:                    throw new IllegalArgumentException(
042:                            "OpenType parameter cannot be null.");
043:                this .openType = openType;
044:            }
045:
046:            public OpenMBeanParameterInfoSupport(String name,
047:                    String description, OpenType openType, Object defaultValue)
048:                    throws OpenDataException {
049:                this (name, description, openType);
050:                if (defaultValue != null) {
051:                    if (openType.isArray() || openType instanceof  TabularType)
052:                        throw new OpenDataException(
053:                                "openType should not be an ArrayType or a TabularType when a default value is required.");
054:                    if (!(openType.isValue(defaultValue)))
055:                        throw new OpenDataException(
056:                                "defaultValue class name "
057:                                        + defaultValue.getClass().getName()
058:                                        + " does not match the one defined in openType.");
059:                    this .defaultValue = defaultValue;
060:                }
061:            }
062:
063:            public OpenMBeanParameterInfoSupport(String name,
064:                    String description, OpenType openType, Object defaultValue,
065:                    Object[] legalValues) throws OpenDataException {
066:                this (name, description, openType, defaultValue);
067:                if (legalValues != null && legalValues.length > 0) {
068:                    if (openType.isArray() || openType instanceof  TabularType)
069:                        throw new OpenDataException(
070:                                "legalValues not supported if openType is an ArrayType or an instanceof TabularType");
071:                    for (int i = 0; i < legalValues.length; i++) {
072:                        if (!(openType.isValue(legalValues[i])))
073:                            throw new OpenDataException("The element at index "
074:                                    + i + " of type " + legalValues[i]
075:                                    + " is not an value specified in openType.");
076:                    }
077:                    // all checked assign Object[] legalValues to set legalValues
078:                    assignLegalValues(legalValues);
079:                    if (hasDefaultValue() && hasLegalValues()
080:                            && !(this .legalValues.contains(defaultValue)))
081:                        throw new OpenDataException(
082:                                "LegalValues must contain the defaultValue");
083:                }
084:            }
085:
086:            public OpenMBeanParameterInfoSupport(String name,
087:                    String description, OpenType openType, Object defaultValue,
088:                    Comparable minValue, Comparable maxValue)
089:                    throws OpenDataException {
090:                this (name, description, openType, defaultValue);
091:                if (minValue != null) {
092:                    /** test is a valid value for the specified openType */
093:                    if (!(openType.isValue(minValue)))
094:                        throw new OpenDataException("Comparable value of "
095:                                + minValue.getClass().getName()
096:                                + " does not match the openType value of "
097:                                + openType.getClassName());
098:                    this .minValue = minValue;
099:                }
100:                if (maxValue != null) {
101:                    if (!(openType.isValue(maxValue)))
102:                        throw new OpenDataException("Comparable value of "
103:                                + maxValue.getClass().getName()
104:                                + " does not match the openType value of "
105:                                + openType.getClassName());
106:                    this .maxValue = maxValue;
107:                }
108:                if (hasMinValue() && hasMaxValue()
109:                        && minValue.compareTo(maxValue) > 0)
110:                    throw new OpenDataException(
111:                            "minValue cannot be greater than maxValue.");
112:                if (hasDefaultValue() && hasMinValue()
113:                        && minValue.compareTo(defaultValue) > 0)
114:                    throw new OpenDataException(
115:                            "minValue cannot be greater than defaultValue.");
116:                if (hasDefaultValue() && hasMaxValue()
117:                        && ((Comparable) defaultValue).compareTo(maxValue) > 0)
118:                    throw new OpenDataException(
119:                            "defaultValue cannot be greater than maxValue.");
120:            }
121:
122:            /**
123:             * Assigns the validated Object[] into the set legal values as the constructor states
124:             * this is unmodifiable will create an unmodifiable set
125:             */
126:            private void assignLegalValues(Object[] legalValues) {
127:                HashSet modifiableSet = new HashSet();
128:                for (int i = 0; i < legalValues.length; i++) {
129:                    modifiableSet.add(legalValues[i]);
130:                }
131:                this .legalValues = Collections.unmodifiableSet(modifiableSet);
132:            }
133:
134:            public OpenType getOpenType() {
135:                return openType;
136:            }
137:
138:            public Object getDefaultValue() {
139:                return defaultValue;
140:            }
141:
142:            public Set getLegalValues() {
143:                return legalValues;
144:            }
145:
146:            public Comparable getMinValue() {
147:                return minValue;
148:            }
149:
150:            public Comparable getMaxValue() {
151:                return maxValue;
152:            }
153:
154:            public boolean hasDefaultValue() {
155:                return defaultValue != null;
156:            }
157:
158:            public boolean hasLegalValues() {
159:                return legalValues != null;
160:            }
161:
162:            public boolean hasMinValue() {
163:                return minValue != null;
164:            }
165:
166:            public boolean hasMaxValue() {
167:                return maxValue != null;
168:            }
169:
170:            public boolean isValue(Object obj) {
171:                // if any object is null and they have a defaultValue then isValue is true for anything else null obj returns false (must be first test) as the rest will return false for the null object
172:                if (hasDefaultValue() && obj == null)
173:                    return true;
174:
175:                if (!(openType.isValue(obj)))
176:                    return false;
177:                if (hasLegalValues() && (!(legalValues.contains(obj))))
178:                    return false;
179:                if (hasMinValue() && minValue.compareTo(obj) > 0)
180:                    return false;
181:                if (hasMaxValue() && maxValue.compareTo(obj) < 0)
182:                    return false;
183:                return true;
184:            }
185:
186:            public boolean equals(Object obj) {
187:                if (obj == this )
188:                    return true;
189:                if (obj == null)
190:                    return false;
191:                if (!(obj instanceof  OpenMBeanParameterInfo))
192:                    return false;
193:
194:                OpenMBeanParameterInfo paramObj = (OpenMBeanParameterInfo) obj;
195:
196:                if (!getName().equals(paramObj.getName()))
197:                    return false;
198:                if (!getOpenType().equals(paramObj.getOpenType()))
199:                    return false;
200:
201:                if (hasDefaultValue()
202:                        && (!getDefaultValue().equals(
203:                                paramObj.getDefaultValue())))
204:                    return false;
205:                if (!hasDefaultValue() && paramObj.hasDefaultValue())
206:                    return false;
207:
208:                if (hasMinValue()
209:                        && !(getMinValue().equals(paramObj.getMinValue())))
210:                    return false;
211:                if (!hasMinValue() && paramObj.hasMinValue())
212:                    return false;
213:
214:                if (hasMaxValue()
215:                        && !(getMaxValue().equals(paramObj.getMaxValue())))
216:                    return false;
217:                if (!hasMaxValue() && paramObj.hasMaxValue())
218:                    return false;
219:
220:                if (hasLegalValues()
221:                        && !(getLegalValues().equals(paramObj.getLegalValues())))
222:                    return false;
223:                if (!hasLegalValues() && paramObj.hasLegalValues())
224:                    return false;
225:
226:                return true;
227:            }
228:
229:            public int hashCode() {
230:                if (m_hashcode == 0) {
231:                    int result = getName().hashCode();
232:                    result += getOpenType().hashCode();
233:                    result += (hasDefaultValue() == false) ? 0
234:                            : getDefaultValue().hashCode();
235:                    result += (hasLegalValues() == false) ? 0
236:                            : getLegalValues().hashCode();
237:                    result += (hasMinValue() == false) ? 0 : getMinValue()
238:                            .hashCode();
239:                    result += (hasMaxValue() == false) ? 0 : getMaxValue()
240:                            .hashCode();
241:                    m_hashcode = result;
242:                }
243:                return m_hashcode;
244:            }
245:
246:            public String toString() {
247:                StringBuffer buf = new StringBuffer(getClass().getName());
248:                buf.append("\t(name = ");
249:                buf.append(getName());
250:                buf.append("\topenType = ");
251:                buf.append(openType.toString());
252:                buf.append("\tdefault value = ");
253:                buf.append(String.valueOf(defaultValue));
254:                buf.append("\tmin value = ");
255:                buf.append(String.valueOf(minValue));
256:                buf.append("\tmax value = ");
257:                buf.append(String.valueOf(maxValue));
258:                buf.append("\tlegal values = ");
259:                buf.append(String.valueOf(legalValues));
260:                buf.append(")");
261:                return buf.toString();
262:            }
263:        }
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