Diff: ComposedRecord.cpp

Revision:

0:099f76422485

Child:

4:059b8b90e0d9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ComposedRecord.cpp	Thu Jul 03 20:38:04 2014 +0200
@@ -0,0 +1,124 @@
+/*
+ * ComposedRecord.cpp
+ *
+ * Created on: Nov 1, 2013
+ * * Authors: Vincent Wochnik <v.wochnik@gmail.com>
+ *
+ * Copyright (c) 2013 Cumulocity GmbH
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ComposedRecord.h"
+#include "NullValue.h"
+#include <stdlib.h>
+#include <string.h>
+
+ComposedRecord::ComposedRecord(bool copy)
+{
+    _alloc = copy;
+    #ifndef SMARTREST_COMPOSED_FIXED_SIZE
+    _capacity = 0;
+    _values = NULL;
+    #endif
+    _count = 0;
+}
+
+ComposedRecord::~ComposedRecord()
+{
+    if (_alloc) {
+        for (size_t n = 0; n < _count; n++)
+            delete _values[n];
+    }
+    #ifndef SMARTREST_COMPOSED_FIXED_SIZE
+    if (_values != NULL)
+        free(_values);
+    #endif
+}
+
+bool ComposedRecord::add(const Value& value)
+{
+    #ifndef SMARTREST_COMPOSED_FIXED_SIZE
+    if (_capacity == _count) {
+        size_t capacity;
+        if (_capacity == 0)
+            capacity = SMARTREST_COMPOSED_INITIAL_CAPACITY;
+        else
+            capacity = _capacity + SMARTREST_COMPOSED_MEMORY_INCREMENT;
+
+        const Value **values = (const Value**)realloc(_values,
+            capacity*sizeof(Value*));
+        if (values == NULL)
+            return false;
+        _values = values;
+        _capacity = capacity;
+    }
+    #else
+    if (_count == SMARTREST_COMPOSED_FIXED_SIZE)
+        return false;
+    #endif
+
+    if (_alloc) {
+        Value *copy = value.copy();
+        if (copy == NULL)
+            return false;
+        _values[_count++] = copy;
+    } else {
+        _values[_count++] = &value;
+    }
+    return true;
+}
+
+void ComposedRecord::clear()
+{
+    if (_alloc) {
+        for (size_t n = 0; n < _count; n++)
+            delete _values[n];
+    }
+    _count = 0;
+
+    #ifndef SMARTREST_COMPOSED_FIXED_SIZE
+    if (_values != NULL)
+        free(_values);
+    _values = NULL;
+    _capacity = 0;
+    #endif
+}
+
+size_t ComposedRecord::values() const
+{
+    return _count;
+}
+
+const Value& ComposedRecord::value(size_t index) const
+{
+    if (index >= _count)
+        return aNullValue;
+    return *_values[index];
+}
+
+DataGenerator* ComposedRecord::copy() const
+{
+    ComposedRecord *copy = new ComposedRecord(true);
+    for (size_t n = 0; n < _count; n++)
+        copy->add(*_values[n]);
+    return copy;
+}
+