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Fix pretty printing of interlacing arrays and objects.

This commit is contained in:
Joel Leitch 2008-09-27 19:01:45 +00:00
parent 9ad4b2bc7e
commit 1cad54f7b1
1 changed files with 14 additions and 11 deletions
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25
gson/src/main/java/com/google/gson/JsonPrintFormatter.java
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@ -130,7 +130,8 @@ final class JsonPrintFormatter implements JsonFormatter {
}
private class PrintFormattingVisitor implements JsonElementVisitor {
private final Map<Integer, Boolean> first;
private final Map<Integer, Boolean> firstArrayElement;
private final Map<Integer, Boolean> firstObjectMember;
private final JsonWriter writer;
private final boolean serializeNulls;
private int level = 0;
@ -138,10 +139,11 @@ final class JsonPrintFormatter implements JsonFormatter {
PrintFormattingVisitor(JsonWriter writer, boolean serializeNulls) {
this.writer = writer;
this.serializeNulls = serializeNulls;
this.first = new HashMap<Integer, Boolean>();
this.firstArrayElement = new HashMap<Integer, Boolean>();
this.firstObjectMember = new HashMap<Integer, Boolean>();
}
private void addCommaCheckingFirst() {
private void addCommaCheckingFirst(Map<Integer, Boolean> first) {
if (first.get(level) != Boolean.FALSE) {
first.put(level, false);
} else {
@ -150,25 +152,25 @@ final class JsonPrintFormatter implements JsonFormatter {
}
public void startArray(JsonArray array) {
first.put(++level, true);
firstArrayElement.put(++level, true);
writer.beginArray();
}
public void visitArrayMember(JsonArray parent, JsonPrimitive member, boolean isFirst) {
addCommaCheckingFirst();
addCommaCheckingFirst(firstArrayElement);
writer.value(member.toString());
}
public void visitArrayMember(JsonArray parent, JsonArray member, boolean first) {
addCommaCheckingFirst();
addCommaCheckingFirst(firstArrayElement);
}
public void visitArrayMember(JsonArray parent, JsonObject member, boolean first) {
addCommaCheckingFirst();
addCommaCheckingFirst(firstArrayElement);
}
public void visitNullArrayMember(JsonArray parent, boolean isFirst) {
addCommaCheckingFirst();
addCommaCheckingFirst(firstArrayElement);
}
public void endArray(JsonArray array) {
@ -177,12 +179,13 @@ final class JsonPrintFormatter implements JsonFormatter {
}
public void startObject(JsonObject object) {
firstObjectMember.put(level, true);
writer.beginObject();
}
public void visitObjectMember(JsonObject parent, String memberName, JsonPrimitive member,
boolean isFirst) {
addCommaCheckingFirst();
addCommaCheckingFirst(firstObjectMember);
writer.key(memberName);
writer.fieldSeparator();
writer.value(member.toString());
@ -190,14 +193,14 @@ final class JsonPrintFormatter implements JsonFormatter {
public void visitObjectMember(JsonObject parent, String memberName, JsonArray member,
boolean isFirst) {
addCommaCheckingFirst();
addCommaCheckingFirst(firstObjectMember);
writer.key(memberName);
writer.fieldSeparator();
}
public void visitObjectMember(JsonObject parent, String memberName, JsonObject member,
boolean isFirst) {
addCommaCheckingFirst();
addCommaCheckingFirst(firstObjectMember);
writer.key(memberName);
writer.fieldSeparator();
}