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com.wizzardo.tools.json.JsonObject Maven / Gradle / Ivy
package com.wizzardo.tools.json;
import com.wizzardo.tools.misc.ExceptionDrivenStringBuilder;
import com.wizzardo.tools.misc.pool.Holder;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.Map;
import static com.wizzardo.tools.json.JsonUtils.*;
/**
* @author: moxa
* Date: 12/26/12
*/
public class JsonObject extends LinkedHashMap {
static int parse(char[] s, int from, int to, JsonBinder json) {
int i = ++from;
char current;
outer:
for (; i < to; i++) {
current = s[i];
if (current <= ' ')
continue;
if (current == '}')
break;
i = parseKey(json, s, i, to);
i = skipSpaces(s, i, to);
current = s[i];
switch (current) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '-': {
i = parseNumber(json, s, i, to);
break;
}
case '{': {
if (json == null) {
i = JsonObject.parse(s, i, to, null);
break;
}
JsonBinder ob = json.getObjectBinder();
i = JsonObject.parse(s, i, to, ob);
if (ob != null)
json.add(ob.getObject());
break;
}
case '[': {
if (json == null) {
i = JsonArray.parse(s, i, to, null);
break;
}
JsonBinder ob = json.getArrayBinder();
i = JsonArray.parse(s, i, to, ob);
if (ob != null)
json.add(ob.getObject());
break;
}
case '}': {
break outer;
}
default: {
i = parseValue(json, s, i, to, '}');
}
}
i = skipSpaces(s, i, to);
current = s[i];
if (current == ',')
continue;
if (current == '}')
break;
throw new IllegalStateException("here must be ',' or '}' , but found: " + current);
}
return i + 1;
}
@Override
public String toString() {
Holder holder = JsonTools.builderPool.holder();
try {
ExceptionDrivenStringBuilder builder = holder.get();
Appender sb = Appender.create(builder);
toJson(sb);
return sb.toString();
} finally {
holder.close();
}
}
void toJson(Appender sb) {
sb.append('{');
boolean comma = false;
for (Map.Entry entry : entrySet()) {
if (comma)
sb.append(',');
else
comma = true;
sb.append('"');
sb.append(entry.getKey());
sb.append('"');
sb.append(':');
if (entry.getValue() == null)
sb.append("null");
else
entry.getValue().toJson(sb);
}
sb.append('}');
}
public boolean isNull(String key) {
return get(key).isNull();
}
public boolean isJsonArray(String key) {
return get(key).isJsonArray();
}
public boolean isJsonObject(String key) {
return get(key).isJsonObject();
}
public String getAsString(String key) {
return getAsString(key, null);
}
public String getAsString(String key, String def) {
JsonItem item = get(key);
return item == null ? def : item.asString();
}
public > Enum getAsEnum(String key, Class cl) {
return getAsEnum(key, cl, null);
}
public > Enum getAsEnum(String key, Class cl, T def) {
JsonItem item = get(key);
return item == null ? def : item.asEnum(cl);
}
public Long getAsLong(String key) {
return getAsLong(key, null);
}
public Long getAsLong(String key, Long def) {
JsonItem item = get(key);
return item == null ? def : item.asLong(def);
}
public Integer getAsInteger(String key) {
return getAsInteger(key, null);
}
public Integer getAsInteger(String key, Integer def) {
JsonItem item = get(key);
return item == null ? def : item.asInteger(def);
}
public Double getAsDouble(String key) {
return getAsDouble(key, null);
}
public Double getAsDouble(String key, Double def) {
JsonItem item = get(key);
return item == null ? def : item.asDouble(def);
}
public Float getAsFloat(String key) {
return getAsFloat(key, null);
}
public Float getAsFloat(String key, Float def) {
JsonItem item = get(key);
return item == null ? def : item.asFloat(def);
}
public Boolean getAsBoolean(String key) {
return getAsBoolean(key, null);
}
public Boolean getAsBoolean(String key, Boolean def) {
JsonItem item = get(key);
return item == null ? def : item.asBoolean(def);
}
public JsonObject getAsJsonObject(String key) {
JsonItem item = get(key);
return item == null ? null : item.asJsonObject();
}
public JsonArray getAsJsonArray(String key) {
JsonItem item = get(key);
return item == null ? null : item.asJsonArray();
}
public JsonObject append(String key, Object ob) {
if (ob instanceof JsonItem) {
put(key, (JsonItem) ob);
} else
put(key, new JsonItem(ob));
return this;
}
public JsonObject append(String key, Collection ob) {
if (ob instanceof JsonArray) {
return append(key, ((JsonArray) ob));
} else
return append(key, new JsonArray().appendAll(ob));
}
public JsonObject append(String key, JsonArray ob) {
put(key, new JsonItem(ob));
return this;
}
}
