Initial commit: cframework. Longbow and Libparc

Change-Id: I90378dbd30da6033b20fb1f829b3b822cf366c59
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>

1 files changed, 404 insertions, 0 deletions

diff --git a/libparc/parc/algol/parc_JSON.c b/libparc/parc/algol/parc_JSON.c
new file mode 100755
index 00000000..d70a302e
--- /dev/null
+++ b/libparc/parc/algol/parc_JSON.c
@@ -0,0 +1,404 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ */
+#include <config.h>
+
+#include <LongBow/runtime.h>
+
+#include <stdio.h>
+#include <ctype.h>
+#include <math.h>
+
+#include <parc/algol/parc_JSON.h>
+#include <parc/algol/parc_JSONPair.h>
+#include <parc/algol/parc_JSONValue.h>
+#include <parc/algol/parc_JSONParser.h>
+
+#include <parc/algol/parc_DisplayIndented.h>
+#include <parc/algol/parc_Object.h>
+#include <parc/algol/parc_Buffer.h>
+#include <parc/algol/parc_Memory.h>
+#include <parc/algol/parc_List.h>
+#include <parc/algol/parc_ArrayList.h>
+#include <parc/algol/parc_BufferComposer.h>
+#include <parc/algol/parc_PathName.h>
+
+struct parc_json {
+    PARCList *members;
+};
+
+static void
+_destroyPARCJSON(PARCJSON **jsonPtr)
+{
+    PARCJSON *json = *jsonPtr;
+
+    parcList_Release(&json->members);
+}
+
+parcObject_ExtendPARCObject(PARCJSON, _destroyPARCJSON, NULL, parcJSON_ToString, parcJSON_Equals, NULL, NULL, NULL);
+
+PARCJSON *
+parcJSON_Create(void)
+{
+    PARCJSON *result = parcObject_CreateInstance(PARCJSON);
+    if (result != NULL) {
+        result->members = parcList(parcArrayList_Create((void (*)(void **))parcJSONPair_Release), PARCArrayListAsPARCList);
+    }
+
+    return result;
+}
+
+parcObject_ImplementAcquire(parcJSON, PARCJSON);
+
+parcObject_ImplementRelease(parcJSON, PARCJSON);
+
+static bool
+_memberListEquals(const PARCList *x, const PARCList *y)
+{
+    for (size_t i = 0; i < parcList_Size(x); i++) {
+        PARCJSONPair *pairA = parcList_GetAtIndex(x, i);
+        PARCJSONPair *pairB = parcList_GetAtIndex(y, i);
+        if (parcJSONPair_Equals(pairA, pairB) == false) {
+            return false;
+        }
+    }
+    return true;
+}
+
+static PARCBuffer *
+_toCreatedBuffer(const PARCJSON *json, bool compact)
+{
+    if (json == NULL) {
+        return NULL;
+    }
+    PARCBufferComposer *composer = parcBufferComposer_Create();
+    parcJSON_BuildString(json, composer, compact);
+
+    PARCBuffer *result = parcBufferComposer_ProduceBuffer(composer);
+    parcBufferComposer_Release(&composer);
+
+    return result;
+}
+
+static char *
+_toString(const PARCJSON *json, bool compact)
+{
+    PARCBuffer *tempBuffer = _toCreatedBuffer(json, compact);
+
+    char *result = parcBuffer_ToString(tempBuffer);
+    parcBuffer_Release(&tempBuffer);
+
+    return result;
+}
+
+bool
+parcJSON_Equals(const PARCJSON *x, const PARCJSON *y)
+{
+    bool result = false;
+
+    if (x == NULL && y == NULL) {
+        result = true;
+    } else if (x != NULL && y != NULL) {
+        if (parcList_Size(x->members) == parcList_Size(y->members)) {
+            if (_memberListEquals(x->members, y->members)) {
+                result = true;
+            }
+        }
+    }
+
+    return result;
+}
+
+PARCJSON *
+parcJSON_Copy(const PARCJSON *src)
+{
+    //TODO - This is an ineffecient deep copy. The _Copy() operation needs to be implementd for all PARCJSON* types
+    //before we can do an effecient deep copy.
+    if (src == NULL) {
+        return NULL;
+    }
+    PARCBuffer *temp = _toCreatedBuffer(src, true);
+    PARCJSON *result = parcJSON_ParseBuffer(temp);
+    parcBuffer_Release(&temp);
+
+    return result;
+}
+
+
+PARCHashCode
+parcJSON_HashCode(const PARCJSON *json)
+{
+    PARCBuffer *temp = _toCreatedBuffer(json, true);
+    PARCHashCode result = parcBuffer_HashCode(temp);
+    parcBuffer_Release(&temp);
+
+    return result;
+}
+
+void
+parcJSON_Display(const PARCJSON *json, int indentation)
+{
+    parcDisplayIndented_PrintLine(indentation, "PARCJSON@%p {", json);
+    for (size_t index = 0; index < parcList_Size(json->members); index++) {
+        PARCJSONPair *pair = parcList_GetAtIndex(json->members, index);
+        parcJSONPair_Display(pair, indentation + 1);
+    }
+    parcDisplayIndented_PrintLine(indentation, "}");
+}
+
+PARCJSONPair *
+parcJSON_GetPairByIndex(const PARCJSON *json, size_t index)
+{
+    PARCJSONPair *result = NULL;
+
+    if (parcList_Size(json->members) > index) {
+        result = parcList_GetAtIndex(json->members, index);
+    }
+
+    return result;
+}
+
+PARCJSONValue *
+parcJSON_GetValueByIndex(const PARCJSON *json, size_t index)
+{
+    PARCJSONValue *result = NULL;
+
+    if (parcList_Size(json->members) > index) {
+        result = parcJSONPair_GetValue(parcList_GetAtIndex(json->members, index));
+    }
+
+    return result;
+}
+
+const PARCJSONPair *
+parcJSON_GetPairByName(const PARCJSON *json, const char *name)
+{
+    PARCJSONPair *result = NULL;
+
+    PARCBuffer *nameBuffer = parcBuffer_Wrap((uint8_t *) name, strlen(name), 0, strlen(name));
+    for (size_t index = 0; index < parcList_Size(json->members); index++) {
+        PARCJSONPair *pair = parcList_GetAtIndex(json->members, index);
+        if (parcBuffer_Equals(nameBuffer, parcJSONPair_GetName(pair))) {
+            result = pair;
+            break;
+        }
+    }
+    parcBuffer_Release(&nameBuffer);
+    return result;
+}
+
+PARCJSONValue *
+parcJSON_GetValueByName(const PARCJSON *json, const char *name)
+{
+    PARCJSONValue *result = NULL;
+    const PARCJSONPair *pair = parcJSON_GetPairByName(json, name);
+    if (pair != NULL) {
+        result = parcJSONPair_GetValue(pair);
+    }
+
+    return result;
+}
+
+PARCList *
+parcJSON_GetMembers(const PARCJSON *json)
+{
+    return json->members;
+}
+
+PARCBufferComposer *
+parcJSON_BuildString(const PARCJSON *json, PARCBufferComposer *composer, bool compact)
+{
+    parcBufferComposer_PutChar(composer, '{');
+    if (!compact) {
+        parcBufferComposer_PutChar(composer, ' ');
+    }
+
+    char *separator = "";
+    for (size_t i = 0; i < parcList_Size(json->members); i++) {
+        parcBufferComposer_PutString(composer, separator);
+        parcJSONPair_BuildString(parcList_GetAtIndex(json->members, i), composer, compact);
+        separator = ", ";
+        if (compact) {
+            separator = ",";
+        }
+    }
+
+    if (!compact) {
+        parcBufferComposer_PutChar(composer, ' ');
+    }
+    parcBufferComposer_PutChar(composer, '}');
+    return composer;
+}
+
+
+char *
+parcJSON_ToString(const PARCJSON *json)
+{
+    return _toString(json, false);
+}
+
+char *
+parcJSON_ToCompactString(const PARCJSON *json)
+{
+    return _toString(json, true);
+}
+
+const PARCJSONValue *
+parcJSON_GetByPathName(const PARCJSONValue *pathNode, const PARCPathName *path)
+{
+    for (int i = 0; i < parcPathName_Size(path); i++) {
+        char *name = parcPathName_GetAtIndex(path, i);
+        if (parcJSONValue_IsJSON(pathNode)) {
+            const PARCJSONPair *pair = parcJSON_GetPairByName(parcJSONValue_GetJSON(pathNode), name);
+            if (pair == NULL) {
+                pathNode = NULL;
+                break;
+            }
+            pathNode = parcJSONPair_GetValue(pair);
+        } else if (parcJSONValue_IsArray(pathNode)) {
+            size_t index = strtoll(name, NULL, 10);
+            if (index > parcJSONArray_GetLength(parcJSONValue_GetArray(pathNode))) {
+                pathNode = NULL;
+                break;
+            }
+            pathNode = parcJSONArray_GetValue(parcJSONValue_GetArray(pathNode), index);
+        } else {
+            pathNode = NULL;
+            break;
+        }
+    }
+
+    return pathNode;
+}
+
+const PARCJSONValue *
+parcJSON_GetByPath(const PARCJSON *json, const char *path)
+{
+    PARCJSONValue *pathNode = parcJSONValue_CreateFromJSON((PARCJSON *) json);
+
+    PARCPathName *pathName = parcPathName_Parse(path);
+    const PARCJSONValue *result = parcJSON_GetByPathName(pathNode, pathName);
+    parcPathName_Release(&pathName);
+
+    parcJSONValue_Release(&pathNode);
+    return result;
+}
+
+PARCJSON *
+parcJSON_ParseString(const char *string)
+{
+    // The input string is read-only, therefore we can cast it here when calling the parcBuffer_WrapCString()
+    // to work around the fact that the function does not take a 'const' attribute.
+    // This function is not going to modify the input string, so the 'const' promise will be kept.
+    PARCBuffer *buffer = parcBuffer_WrapCString((char *) string);
+
+    PARCJSON *result = parcJSON_ParseBuffer(buffer);
+    parcBuffer_Release(&buffer);
+
+    return result;
+}
+
+PARCJSON *
+parcJSON_ParseBuffer(PARCBuffer *buffer)
+{
+    PARCJSON *result = NULL;
+
+    // The input string is read-only, therefore we can cast it here when calling the parcBuffer_WrapCString()
+    // to work around the fact that the function does not take a 'const' attribute.
+    // This function is not going to modify the input string, so the 'const' promise will be kept.
+
+    PARCJSONParser *parser = parcJSONParser_Create(buffer);
+
+    char firstCharacter = parcJSONParser_PeekNextChar(parser);
+    if (firstCharacter == '{') {
+        PARCJSONValue *value = parcJSONValue_ObjectParser(parser);
+
+        result = parcJSON_Acquire(parcJSONValue_GetJSON(value));
+        parcJSONValue_Release(&value);
+    }
+
+    parcJSONParser_Release(&parser);
+
+    return result;
+}
+
+PARCJSON *
+parcJSON_AddPair(PARCJSON *json, PARCJSONPair *pair)
+{
+    parcList_Add(json->members, parcJSONPair_Acquire(pair));
+    return json;
+}
+
+PARCJSON *
+parcJSON_AddValue(PARCJSON *json, const char *name, PARCJSONValue *value)
+{
+    PARCJSONPair *pair = parcJSONPair_CreateFromJSONValue(name, value);
+    parcJSON_AddPair(json, pair);
+    parcJSONPair_Release(&pair);
+
+    return json;
+}
+
+PARCJSON *
+parcJSON_AddString(PARCJSON *json, const char *name, const char *value)
+{
+    PARCJSONPair *pair = parcJSONPair_CreateFromString(name, value);
+    parcJSON_AddPair(json, pair);
+    parcJSONPair_Release(&pair);
+
+    return json;
+}
+
+PARCJSON *
+parcJSON_AddObject(PARCJSON *json, const char *name, PARCJSON *value)
+{
+    PARCJSONPair *pair = parcJSONPair_CreateFromJSON(name, value);
+    parcJSON_AddPair(json, pair);
+    parcJSONPair_Release(&pair);
+
+    return json;
+}
+
+PARCJSON *
+parcJSON_AddInteger(PARCJSON *json, const char *name, int64_t value)
+{
+    PARCJSONPair *pair = parcJSONPair_CreateFromInteger(name, value);
+    parcJSON_AddPair(json, pair);
+    parcJSONPair_Release(&pair);
+
+    return json;
+}
+
+PARCJSON *
+parcJSON_AddBoolean(PARCJSON *json, const char *name, bool value)
+{
+    PARCJSONPair *pair = parcJSONPair_CreateFromBoolean(name, value);
+    parcJSON_AddPair(json, pair);
+    parcJSONPair_Release(&pair);
+
+    return json;
+}
+
+PARCJSON *
+parcJSON_AddArray(PARCJSON *json, const char *name, PARCJSONArray *value)
+{
+    PARCJSONPair *pair = parcJSONPair_CreateFromJSONArray(name, value);
+    parcJSON_AddPair(json, pair);
+    parcJSONPair_Release(&pair);
+
+    return json;
+}