public static boolean isValueExists(IStructuredDocument document, IJSONPath path) {
IJSONModel model = null;
try {
model = (IJSONModel) StructuredModelManager.getModelManager().getModelForRead(document);
IJSONPair pair = findByPath(model.getDocument(), path.getSegments());
return pair != null;
} finally {
if (model != null) {
model.releaseFromRead();
}
}
}
public static void removePath(IStructuredDocument document, IJSONPath path) {
IJSONModel model = null;
try {
model = (IJSONModel) StructuredModelManager.getModelManager().getModelForRead(document);
IJSONPair pair = findByPath(model.getDocument(), path.getSegments());
if (pair != null) {
document.replaceText(
document, pair.getStartOffset(), pair.getEndOffset() - pair.getStartOffset(), "");
}
} finally {
if (model != null) {
model.releaseFromRead();
}
}
}
public static Object getValue(IStructuredDocument document, IJSONPath path) {
IJSONModel model = null;
try {
model = (IJSONModel) StructuredModelManager.getModelManager().getModelForRead(document);
IJSONPair pair = findByPath(model.getDocument(), path.getSegments());
if (pair != null) {
IJSONValue value = pair.getValue();
return getValue(value);
}
} finally {
if (model != null) {
model.releaseFromRead();
}
}
return null;
}
public static void setValue(IStructuredDocument document, IJSONPath path, Object value) {
IJSONModel model = null;
try {
model = (IJSONModel) StructuredModelManager.getModelManager().getModelForEdit(document);
IJSONNode parent = model.getDocument().getFirstChild();
String[] segments = path.getSegments();
String name = null;
int replaceOffset = 0;
int replaceLength = 0;
boolean isArray = false;
int startIndex = NO_START_INDEX;
StringBuilder newContent = new StringBuilder();
for (int i = 0; i < segments.length; i++) {
name = segments[i];
isArray = isArray(path, i);
IJSONPair node = findByPath(parent, name);
if (node != null) {
parent = node;
IJSONNode jsonValue = node.getValue();
if (isObject(jsonValue)) {
parent = jsonValue;
replaceOffset = getEndOffset(parent, true);
} else {
if (jsonValue != null) {
replaceOffset = jsonValue.getStartOffset();
replaceLength =
isArray(jsonValue)
? jsonValue.getEndStructuredDocumentRegion().getEndOffset()
- jsonValue.getFirstStructuredDocumentRegion().getStartOffset()
: jsonValue.getFirstStructuredDocumentRegion().getFirstRegion().getLength();
}
}
} else {
if (isObjectOrArray(parent)) {
replaceOffset = getEndOffset(parent, true);
if (parent.hasChildNodes()) {
newContent.append(",");
}
} else {
newContent.append(isArray ? "[" : "{");
if (startIndex == NO_START_INDEX) {
startIndex = i - 1;
}
}
newLineAndIndent(i, newContent);
newContent.append("\"");
newContent.append(name);
newContent.append("\": ");
parent = null;
}
}
addValue(value, newContent);
if (startIndex != NO_START_INDEX) {
// close JSON object or Array
for (int i = segments.length - 1; i > startIndex; i--) {
if (i == -1) {
newLineAndIndent(0, newContent);
newContent.append("}");
} else {
name = segments[i];
isArray = isArray(path, i);
newLineAndIndent(i - 1, newContent);
newContent.append(isArray ? "]" : "}");
}
}
}
document.replaceText(document, replaceOffset, replaceLength, newContent.toString());
} finally {
if (model != null) {
model.releaseFromEdit();
}
}
}