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+#ifndef QPID_AMQP_MAPREADER_H
+#define QPID_AMQP_MAPREADER_H
+
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 "Reader.h"
+#include "CharSequence.h"
+#include <string>
+
+namespace qpid {
+namespace amqp {
+
+/**
+ * Reading AMQP 1.0 encoded data which is constrained to be a symbol
+ * keyeed map. The keys are assumed never to be described, the values
+ * may be.
+ */
+class MapReader : public Reader
+{
+ public:
+ virtual void onNullValue(const CharSequence& /*key*/, const Descriptor*) {}
+ virtual void onBooleanValue(const CharSequence& /*key*/, bool, const Descriptor*) {}
+ virtual void onUByteValue(const CharSequence& /*key*/, uint8_t, const Descriptor*) {}
+ virtual void onUShortValue(const CharSequence& /*key*/, uint16_t, const Descriptor*) {}
+ virtual void onUIntValue(const CharSequence& /*key*/, uint32_t, const Descriptor*) {}
+ virtual void onULongValue(const CharSequence& /*key*/, uint64_t, const Descriptor*) {}
+ virtual void onByteValue(const CharSequence& /*key*/, int8_t, const Descriptor*) {}
+ virtual void onShortValue(const CharSequence& /*key*/, int16_t, const Descriptor*) {}
+ virtual void onIntValue(const CharSequence& /*key*/, int32_t, const Descriptor*) {}
+ virtual void onLongValue(const CharSequence& /*key*/, int64_t, const Descriptor*) {}
+ virtual void onFloatValue(const CharSequence& /*key*/, float, const Descriptor*) {}
+ virtual void onDoubleValue(const CharSequence& /*key*/, double, const Descriptor*) {}
+ virtual void onUuidValue(const CharSequence& /*key*/, const CharSequence&, const Descriptor*) {}
+ virtual void onTimestampValue(const CharSequence& /*key*/, int64_t, const Descriptor*) {}
+
+ virtual void onBinaryValue(const CharSequence& /*key*/, const CharSequence&, const Descriptor*) {}
+ virtual void onStringValue(const CharSequence& /*key*/, const CharSequence&, const Descriptor*) {}
+ virtual void onSymbolValue(const CharSequence& /*key*/, const CharSequence&, const Descriptor*) {}
+
+ /**
+ * @return true to step into elements of the compound value, false
+ * to skip over it
+ */
+ virtual bool onStartListValue(const CharSequence& /*key*/, uint32_t /*count*/, const Descriptor*) { return true; }
+ virtual bool onStartMapValue(const CharSequence& /*key*/, uint32_t /*count*/, const Descriptor*) { return true; }
+ virtual bool onStartArrayValue(const CharSequence& /*key*/, uint32_t /*count*/, const Constructor&, const Descriptor*) { return true; }
+ virtual void onEndListValue(const CharSequence& /*key*/, uint32_t /*count*/, const Descriptor*) {}
+ virtual void onEndMapValue(const CharSequence& /*key*/, uint32_t /*count*/, const Descriptor*) {}
+ virtual void onEndArrayValue(const CharSequence& /*key*/, uint32_t /*count*/, const Descriptor*) {}
+
+
+ //this class implements the Reader interface, thus acting as a transformer into a more map oriented scheme
+ void onNull(const Descriptor*);
+ void onBoolean(bool, const Descriptor*);
+ void onUByte(uint8_t, const Descriptor*);
+ void onUShort(uint16_t, const Descriptor*);
+ void onUInt(uint32_t, const Descriptor*);
+ void onULong(uint64_t, const Descriptor*);
+ void onByte(int8_t, const Descriptor*);
+ void onShort(int16_t, const Descriptor*);
+ void onInt(int32_t, const Descriptor*);
+ void onLong(int64_t, const Descriptor*);
+ void onFloat(float, const Descriptor*);
+ void onDouble(double, const Descriptor*);
+ void onUuid(const CharSequence&, const Descriptor*);
+ void onTimestamp(int64_t, const Descriptor*);
+
+ void onBinary(const CharSequence&, const Descriptor*);
+ void onString(const CharSequence&, const Descriptor*);
+ void onSymbol(const CharSequence&, const Descriptor*);
+
+ bool onStartList(uint32_t /*count*/, const CharSequence&, const Descriptor*);
+ bool onStartMap(uint32_t /*count*/, const CharSequence&, const Descriptor*);
+ bool onStartArray(uint32_t /*count*/, const CharSequence&, const Constructor&, const Descriptor*);
+ void onEndList(uint32_t /*count*/, const Descriptor*);
+ void onEndMap(uint32_t /*count*/, const Descriptor*);
+ void onEndArray(uint32_t /*count*/, const Descriptor*);
+
+ MapReader();
+ private:
+ CharSequence key;
+ size_t level;
+};
+}} // namespace qpid::amqp
+
+#endif /*!QPID_AMQP_MAPREADER_H*/