Blame D4EnumDefs.h

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// -*- mode: c++; c-basic-offset:4 -*-
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// This file is part of libdap, A C++ implementation of the OPeNDAP Data
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// Access Protocol.
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// Copyright (c) 2013 OPeNDAP, Inc.
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// Author: James Gallagher <jgallagher@opendap.org>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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//
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// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
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#ifndef D4ENUMDEF_H_
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#define D4ENUMDEF_H_
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <functional>
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#include "BaseType.h"
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using namespace std;
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namespace libdap {
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class D4EnumDefs;
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class D4Group;
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class D4EnumDef {
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    string d_name;
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    Type d_type;
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    D4EnumDefs *d_parent;
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    struct tuple {
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        string label;
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        long long value;
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        tuple(const string &l, long long v) : label(l), value(v) {}
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    };
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    vector<tuple> d_tuples;
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    void m_duplicate(const D4EnumDef &rhs)
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    {
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        d_name = rhs.d_name;
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        d_type = rhs.d_type;
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        d_parent = rhs.d_parent;
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        d_tuples = rhs.d_tuples;
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    }
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    void print_value(XMLWriter &xml, const D4EnumDef::tuple &tuple) const;
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public:
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    typedef vector<tuple>::iterator D4EnumValueIter;
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    D4EnumDef() : d_name(""), d_type(dods_null_c), d_parent(0) {}
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    D4EnumDef(const string &n, const Type &t, D4EnumDefs *e = 0) : d_name(n), d_type(t), d_parent(e) {}
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    D4EnumDef(const D4EnumDef &rhs) {
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        m_duplicate(rhs);
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    }
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    string name() const { return d_name; }
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    void set_name(const string &n) { d_name = n; }
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    Type type() const { return d_type; }
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    void set_type(Type t) { d_type = t; }
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    D4EnumDefs *parent() const { return d_parent; }
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    void set_parent(D4EnumDefs *e) { d_parent = e; }
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    bool empty() const { return d_tuples.empty(); }
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    void add_value(const string &label, long long value) {
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        d_tuples.push_back(tuple(label, value));
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    }
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    D4EnumValueIter value_begin() { return d_tuples.begin(); }
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    D4EnumValueIter value_end() { return d_tuples.end(); }
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    string &label(D4EnumValueIter i) { return (*i).label; }
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    long long value(D4EnumValueIter i) { return (*i).value; }
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    bool is_valid_enum_value(long long value);
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    void print_dap4(XMLWriter &xml) const;
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};
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/** The Enumerations defined for a Group. */
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class D4EnumDefs {
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    vector<D4EnumDef*> d_enums;
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    D4Group *d_parent;		// the group that holds this set of D4EnumDefs; weak pointer, don't delete
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    void m_print_enum(XMLWriter &xml, D4EnumDef *e) const;
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    void m_duplicate(const D4EnumDefs &rhs) {
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        D4EnumDefCIter i = rhs.d_enums.begin();
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        while (i != rhs.d_enums.end()) {
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            d_enums.push_back(new D4EnumDef(**i++));    // deep copy
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        }
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        d_parent = rhs.d_parent;
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    }
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public:
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    typedef vector<D4EnumDef*>::iterator D4EnumDefIter;
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    typedef vector<D4EnumDef*>::const_iterator D4EnumDefCIter;
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    D4EnumDefs() : d_parent(0) {}
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    D4EnumDefs(const D4EnumDefs &rhs) {
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        m_duplicate(rhs);
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    }
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    virtual ~D4EnumDefs() {
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        D4EnumDefIter i = d_enums.begin();
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        while(i != d_enums.end()) {
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            delete *i++;
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        }
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    }
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    D4EnumDefs &operator=(const D4EnumDefs &rhs) {
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        if (this == &rhs) return *this;
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        m_duplicate(rhs);
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        return *this;
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    }
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    bool empty() const { return d_enums.empty(); }
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    D4Group *parent() const { return d_parent; }
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    void set_parent(D4Group *p) { d_parent = p; }
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    /** Append a new D4EnumDef.
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     *
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     * @param enum_def The enumeration.
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     */
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    void add_enum(D4EnumDef *enum_def) {
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    	add_enum_nocopy(new D4EnumDef(*enum_def));
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    }
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    void add_enum_nocopy(D4EnumDef *enum_def) {
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    	enum_def->set_parent(this);
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        d_enums.push_back(enum_def);
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    }
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    /// Get an iterator to the start of the enumerations
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    D4EnumDefIter enum_begin() { return d_enums.begin(); }
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    /// Get an iterator to the end of the enumerations
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    D4EnumDefIter enum_end() { return d_enums.end(); }
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    D4EnumDef *find_enum_def(const string &name);
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    /**
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     * @brief Insert a D4EnumDef.
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     * Insert a D4EnumDef before the position specified by the iterator.
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     * @note Calling this method invalidates all iterators that reference this
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     * D4EnumDef object.
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     * @param enum_def Make a deep copy and insert the enumeration definition
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     * @param i iterator
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     */
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    void insert_enum(D4EnumDef *enum_def, D4EnumDefIter i) {
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    	D4EnumDef *enum_def_copy = new D4EnumDef(*enum_def);
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    	enum_def_copy->set_parent(this);
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        d_enums.insert(i, enum_def_copy);
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    }
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    void print_dap4(XMLWriter &xml, bool constrained = false) const;
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};
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} /* namespace libdap */
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#endif /* D4ENUMDEF_H_ */