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print members of map in defined order

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Peter Hormanns 2014-06-17 15:35:31 +02:00
parent bf28f2a755
commit 1b01d43a61
1 changed files with 12 additions and 10 deletions
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22
hsarjcli/src/de/hsadmin/jscli/json/JSONFormatter.java
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@ -1,14 +1,15 @@
package de.hsadmin.jscli.json; package de.hsadmin.jscli.json;
import java.util.Arrays;
import java.util.Collections;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
import java.util.Set;
public class JSONFormatter { public class JSONFormatter {
private int indent = 1; private int indent = 1;
public String format(Object object) { public String format(final Object object) {
if (object == null) return ""; if (object == null) return "";
if (object instanceof List<?>) { if (object instanceof List<?>) {
return formatList((List<?>) object); return formatList((List<?>) object);
@ -25,14 +26,15 @@ public class JSONFormatter {
return "an instance of " + object.getClass().getCanonicalName(); return "an instance of " + object.getClass().getCanonicalName();
} }
public String formatMap(Map<?, ?> map) { public String formatMap(final Map<?, ?> map) {
StringBuffer result = new StringBuffer(); final StringBuffer result = new StringBuffer();
result.append('{'); result.append('{');
incr(); incr();
result.append(newline()); result.append(newline());
StringBuffer formattedMap = new StringBuffer(); final StringBuffer formattedMap = new StringBuffer();
Set<?> keySet = map.keySet(); final List<String> listOfKeys = Arrays.asList(map.keySet().toArray(new String[] {}));
for (Object key : keySet) { Collections.sort(listOfKeys);
for (final Object key : listOfKeys) {
if (formattedMap.length() > 0) { if (formattedMap.length() > 0) {
formattedMap.append(','); formattedMap.append(',');
formattedMap.append(newline()); formattedMap.append(newline());
@ -48,15 +50,15 @@ public class JSONFormatter {
return result.toString(); return result.toString();
} }
public String formatString(String str) { public String formatString(final String str) {
return "'" + str + "'"; return "'" + str + "'";
} }
public String formatList(List<?> list) { public String formatList(final List<?> list) {
return formatArr(list.toArray()); return formatArr(list.toArray());
} }
public String formatArr(Object[] arr) { public String formatArr(final Object[] arr) {
StringBuffer result = new StringBuffer(); StringBuffer result = new StringBuffer();
result.append('['); result.append('[');
incr(); incr();