org.tiogasolutions.dev.common.fine.TraitMap Maven / Gradle / Ivy
/*
* Copyright 2014 Harlan Noonkester
*
* 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 org.tiogasolutions.dev.common.fine;
import org.tiogasolutions.dev.common.BeanUtils;
import org.tiogasolutions.dev.common.EqualsUtils;
import java.io.Serializable;
import java.util.*;
public class TraitMap implements Serializable {
private static final long serialVersionUID = 1L;
private static final TraitMap empty = new TraitMap();
public static TraitMap empty() {
return empty;
}
private final Map m;
public TraitMap(TraitMap givenMap) {
this(givenMap == null ? null : givenMap.getMap());
}
public TraitMap(Map givenMap) {
if (givenMap == null) {
this.m = Collections.emptyMap();
return;
}
SortedMap localMap = new TreeMap<>();
for (Map.Entry entry : givenMap.entrySet()) {
if (entry.getKey() == null) {
continue;
}
String key = fixCase(entry.getKey().toString());
Object value = entry.getValue();
if (value == null) {
localMap.put(key, null);
} else {
localMap.put(key, value.toString());
}
}
this.m = Collections.unmodifiableSortedMap(localMap);
}
public TraitMap(String...traitStrings) {
this(BeanUtils.toMap(traitStrings));
}
public TraitMap(Collection traitStrings) {
this(BeanUtils.toMap(traitStrings));
}
public TraitMap add(String...traits) {
return add(traits == null ? Collections.emptyMap() : BeanUtils.toMap(traits));
}
public TraitMap add(Collection traits) {
return add(traits == null ? Collections.emptyMap() : BeanUtils.toMap(traits));
}
public TraitMap add(TraitMap map) {
return add(map == null ? Collections.emptyMap() : map.getMap());
}
public TraitMap add(Map traitMapArg) {
if (traitMapArg == null) {
return this;
}
Map localMap = new HashMap<>(m);
for (Map.Entry entry : traitMapArg.entrySet()) {
if (entry.getKey() == null) {
// skip it...
} else if (entry.getValue() == null) {
localMap.put(entry.getKey().toString(), null);
} else {
localMap.put(entry.getKey().toString(), entry.getValue().toString());
}
}
return new TraitMap(localMap);
}
public TraitMap remove(String...traits) {
return remove (traits == null ? Collections.emptyList() : Arrays.asList(traits));
}
public TraitMap remove(Collection traits) {
if (traits == null) return this;
Map newMap = new HashMap<>();
for (Map.Entry entry : m.entrySet()) {
if (containsKey(traits, entry.getKey()) == false) {
newMap.put(entry.getKey(), entry.getValue());
}
}
return new TraitMap(newMap);
}
protected boolean containsKey(Map map, String key) {
return containsKey(map.keySet(), key);
}
protected boolean containsKey(Collection collection, String key) {
for (String entry : collection) {
if (keysEqual(entry, key)) {
return true;
}
}
return false;
}
protected boolean keysEqual(String keyA, String keyB) {
if (keyA == null && keyB == null) return true;
if (keyA == null || keyB == null) return false;
return keyA.equalsIgnoreCase(keyB);
}
public Map getMap() {
return m;
}
public boolean isEmpty() {
return m.isEmpty();
}
public boolean isNotEmpty() {
return !m.isEmpty();
}
public int getSize() {
return m.size();
}
public boolean hasTrait(String key) {
if (key == null) return false;
return containsKey(m.keySet(), key);
}
public boolean hasValue(String key, String checkValue) {
if (key == null) return false;
String value = getValue(key);
return EqualsUtils.objectsEqual(checkValue, value);
}
public String getValue(String key) {
for (Map.Entry entry : m.entrySet()) {
if (keysEqual(entry.getKey(), key)) {
return entry.getValue();
}
}
return null;
}
public String getText() {
StringBuilder sb = new StringBuilder();
for (Map.Entry entry : m.entrySet()) {
sb.append(entry.getKey());
sb.append(":");
if (entry.getValue() == null) {
sb.append("null");
} else {
sb.append("\"");
sb.append(entry.getValue());
sb.append("\"");
}
sb.append(", ");
}
if (sb.length() > 2) {
sb.delete(sb.length() - 2, sb.length());
}
return sb.toString();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
} else if (o == null || getClass() != o.getClass()) {
return false;
}
TraitMap that = (TraitMap) o;
int thisCount = this.getSize();
int thatCount = that.getSize();
if (thisCount != thatCount) {
return false;
}
List thisKeys = new ArrayList<>(this.getMap().keySet());
List thatKeys = new ArrayList<>(that.getMap().keySet());
for (int i = 0; i < thisKeys.size(); i++) {
String thisKey = thisKeys.get(i);
String thatKey = thatKeys.get(i);
if (thisKey.equalsIgnoreCase(thatKey) == false) {
return false;
}
String thisValue = this.getValue(thisKey);
String thatValue = that.getValue(thatKey);
if (EqualsUtils.objectsNotEqual(thisValue, thatValue)) {
return false;
}
}
return true;
}
@Override
public int hashCode() {
int result = getClass().getName().hashCode();
result = 31 * result + m.hashCode();
return result;
}
public String toString() {
return getText();
}
protected String fixCase(String value) {
return value;
}
}