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altoslib: Hide members from json by prefixing with __
[fw/altos]
/
altoslib
/
AltosJson.java
diff --git
a/altoslib/AltosJson.java
b/altoslib/AltosJson.java
index 22f81d037c06ef43907fb633e8fa3a5c5bf46877..94ec2aee6029d245f7b87a888412760f43250787 100644
(file)
--- a/
altoslib/AltosJson.java
+++ b/
altoslib/AltosJson.java
@@
-25,39
+25,39
@@
import java.lang.*;
import java.lang.reflect.*;
class JsonUtil {
import java.lang.reflect.*;
class JsonUtil {
-
StringBuffer quote(StringBuffer result, String a)
{
-
result
.append("\"");
+
Writer quote(Writer writer, String a) throws IOException
{
+
writer
.append("\"");
for (int i = 0; i < a.length(); i++) {
char c = a.charAt(i);
switch (c) {
case '"':
case '\\':
for (int i = 0; i < a.length(); i++) {
char c = a.charAt(i);
switch (c) {
case '"':
case '\\':
-
result
.append('\\').append(c);
+
writer
.append('\\').append(c);
break;
case '\n':
break;
case '\n':
-
result
.append("\\n");
+
writer
.append("\\n");
break;
default:
break;
default:
-
result
.append(c);
+
writer
.append(c);
break;
}
}
break;
}
}
-
result
.append("\"");
- return
result
;
+
writer
.append("\"");
+ return
writer
;
}
}
-
StringBuffer append(StringBuffer result, AltosJson value, int indent, boolean pretty)
{
+
Writer append(Writer result, AltosJson value, int indent, boolean pretty) throws IOException
{
value.append(result, indent, pretty);
return result;
}
value.append(result, indent, pretty);
return result;
}
-
StringBuffer append(StringBuffer result, String string)
{
+
Writer append(Writer result, String string) throws IOException
{
result.append(string);
return result;
}
result.append(string);
return result;
}
-
StringBuffer indent(StringBuffer result, int indent)
{
+
Writer indent(Writer result, int indent) throws IOException
{
result.append("\n");
for (int i = 0; i < indent; i++)
result.append("\t");
result.append("\n");
for (int i = 0; i < indent; i++)
result.append("\t");
@@
-80,7
+80,7
@@
class JsonUtil {
class JsonHash extends JsonUtil {
Hashtable<String,AltosJson> hash;
class JsonHash extends JsonUtil {
Hashtable<String,AltosJson> hash;
- void append_hash(
StringBuffer result, int indent, boolean pretty)
{
+ void append_hash(
Writer result, int indent, boolean pretty) throws IOException
{
boolean first = true;
result.append("{");
boolean first = true;
result.append("{");
@@
-125,7
+125,7
@@
class JsonHash extends JsonUtil {
class JsonArray extends JsonUtil {
ArrayList<AltosJson> array;
class JsonArray extends JsonUtil {
ArrayList<AltosJson> array;
- void append_array(
StringBuffer result, int indent, boolean pretty)
{
+ void append_array(
Writer result, int indent, boolean pretty) throws IOException
{
boolean first = true;
append(result, "[");
boolean first = true;
append(result, "[");
@@
-245,7
+245,7
@@
class JsonToken {
this.sval = sval;
}
this.sval = sval;
}
- JsonToken(int token,
StringBuff
er bval) {
+ JsonToken(int token,
Writ
er bval) {
this(token, bval.toString());
}
}
this(token, bval.toString());
}
}
@@
-254,7
+254,7
@@
class JsonToken {
* Lexer for json
*/
class JsonLexer extends JsonUtil {
* Lexer for json
*/
class JsonLexer extends JsonUtil {
-
StringReader
f;
+
Reader
f;
int line;
int ungot = -2;
StringBuffer pending_token;
int line;
int ungot = -2;
StringBuffer pending_token;
@@
-382,7
+382,7
@@
class JsonLexer extends JsonUtil {
return new JsonToken(JsonToken._long, lval);
}
case '"':
return new JsonToken(JsonToken._long, lval);
}
case '"':
-
StringBuffer bval = new StringBuff
er();
+
Writer bval = new StringWrit
er();
for (;;) {
c = ch();
if (c == '"')
for (;;) {
c = ch();
if (c == '"')
@@
-400,7
+400,7
@@
class JsonLexer extends JsonUtil {
break;
}
}
break;
}
}
- bval.
appendCodePoint
(c);
+ bval.
write
(c);
}
return new JsonToken(JsonToken._string, bval);
default:
}
return new JsonToken(JsonToken._string, bval);
default:
@@
-442,6
+442,12
@@
class JsonLexer extends JsonUtil {
line = 1;
token = null;
}
line = 1;
token = null;
}
+
+ JsonLexer(Reader f) {
+ this.f = f;
+ line = 1;
+ token = null;
+ }
}
/*
}
/*
@@
-556,6
+562,10
@@
class JsonParse {
JsonParse(String s) {
lexer = new JsonLexer(s);
}
JsonParse(String s) {
lexer = new JsonLexer(s);
}
+
+ JsonParse(Reader f) {
+ lexer = new JsonLexer(f);
+ }
}
public class AltosJson extends JsonUtil {
}
public class AltosJson extends JsonUtil {
@@
-578,7
+588,7
@@
public class AltosJson extends JsonUtil {
/* Generate string representation of the value
*/
/* Generate string representation of the value
*/
-
StringBuffer append(StringBuffer result, int indent, boolean pretty)
{
+
Writer append(Writer result, int indent, boolean pretty) throws IOException
{
switch (type) {
case type_hash:
hash.append_hash(result, indent, pretty);
switch (type) {
case type_hash:
hash.append_hash(result, indent, pretty);
@@
-615,9
+625,13
@@
public class AltosJson extends JsonUtil {
}
private String toString(int indent, boolean pretty) {
}
private String toString(int indent, boolean pretty) {
- StringBuffer result = new StringBuffer();
- append(result, indent, pretty);
- return result.toString();
+ try {
+ Writer result = new StringWriter();
+ append(result, indent, pretty);
+ return result.toString();
+ } catch (Exception e) {
+ return null;
+ }
}
public String toString() {
}
public String toString() {
@@
-628,6
+642,14
@@
public class AltosJson extends JsonUtil {
return toString(0, true);
}
return toString(0, true);
}
+ public void write(Writer w, int indent, boolean pretty) throws IOException {
+ append(w, indent, pretty);
+ }
+
+ public void write(Writer w) throws IOException {
+ write(w, 0, true);
+ }
+
/* Parse string representation to a value
*/
/* Parse string representation to a value
*/
@@
-641,6
+663,16
@@
public class AltosJson extends JsonUtil {
}
}
}
}
+ public static AltosJson fromReader(Reader f) {
+ JsonParse parse = new JsonParse(f);
+ try {
+ return parse.parse();
+ } catch (IllegalArgumentException ie) {
+ System.out.printf("json:\n%s\n", ie.getMessage());
+ return null;
+ }
+ }
+
/* Accessor functions
*/
private boolean assert_type(boolean setting, int type, int other_type, String error) {
/* Accessor functions
*/
private boolean assert_type(boolean setting, int type, int other_type, String error) {
@@
-1213,6
+1245,10
@@
public class AltosJson extends JsonUtil {
for (Field field : c.getDeclaredFields()) {
String fieldName = field.getName();
for (Field field : c.getDeclaredFields()) {
String fieldName = field.getName();
+ /* XXX hack to allow fields to be not converted */
+ if (fieldName.startsWith("__"))
+ continue;
+
/* Skip static fields */
if (Modifier.isStatic(field.getModifiers()))
continue;
/* Skip static fields */
if (Modifier.isStatic(field.getModifiers()))
continue;