| // 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 <iostream> |
| #include <vector> |
| |
| #include <glog/logging.h> |
| |
| #include <mesos/attributes.hpp> |
| #include <mesos/values.hpp> |
| |
| #include <stout/foreach.hpp> |
| #include <stout/strings.hpp> |
| |
| using std::ostream; |
| using std::string; |
| using std::vector; |
| |
| |
| namespace mesos { |
| |
| std::ostream& operator<<(std::ostream& stream, const Attribute& attribute) |
| { |
| stream << attribute.name() << "="; |
| switch (attribute.type()) { |
| case Value::SCALAR: stream << attribute.scalar(); break; |
| case Value::RANGES: stream << attribute.ranges(); break; |
| case Value::SET: stream << attribute.set(); break; |
| case Value::TEXT: stream << attribute.text(); break; |
| default: |
| LOG(FATAL) << "Unexpected Value type: " << attribute.type(); |
| break; |
| } |
| |
| return stream; |
| } |
| |
| |
| bool Attributes::operator==(const Attributes& that) const |
| { |
| if (size() != that.size()) { |
| return false; |
| } |
| |
| foreach (const Attribute& attribute, attributes) { |
| Option<Attribute> maybeAttribute = that.get(attribute); |
| if (maybeAttribute.isNone()) { |
| return false; |
| } |
| const Attribute& thatAttribute = maybeAttribute.get(); |
| switch (attribute.type()) { |
| case Value::SCALAR: |
| if (!(attribute.scalar() == thatAttribute.scalar())) { |
| return false; |
| } |
| break; |
| case Value::RANGES: |
| if (!(attribute.ranges() == thatAttribute.ranges())) { |
| return false; |
| } |
| break; |
| case Value::TEXT: |
| if (!(attribute.text() == thatAttribute.text())) { |
| return false; |
| } |
| break; |
| case Value::SET: |
| LOG(FATAL) << "Sets not supported for attributes"; |
| } |
| } |
| |
| return true; |
| } |
| |
| |
| const Option<Attribute> Attributes::get(const Attribute& thatAttribute) const |
| { |
| foreach (const Attribute& attribute, attributes) { |
| if (attribute.name() == thatAttribute.name() && |
| attribute.type() == thatAttribute.type()) { |
| return attribute; |
| } |
| } |
| |
| return None(); |
| } |
| |
| |
| Attribute Attributes::parse(const string& name, const string& text) |
| { |
| Attribute attribute; |
| Try<Value> result = internal::values::parse(text); |
| |
| if (result.isError()) { |
| LOG(FATAL) << "Failed to parse attribute " << name |
| << " text " << text |
| << " error " << result.error(); |
| } else { |
| Value value = result.get(); |
| attribute.set_name(name); |
| |
| if (value.type() == Value::RANGES) { |
| attribute.set_type(Value::RANGES); |
| attribute.mutable_ranges()->MergeFrom(value.ranges()); |
| } else if (value.type() == Value::TEXT) { |
| attribute.set_type(Value::TEXT); |
| attribute.mutable_text()->MergeFrom(value.text()); |
| } else if (value.type() == Value::SCALAR) { |
| attribute.set_type(Value::SCALAR); |
| attribute.mutable_scalar()->MergeFrom(value.scalar()); |
| } else { |
| LOG(FATAL) << "Bad type for attribute " << name |
| << " text " << text |
| << " type " << value.type(); |
| } |
| } |
| |
| return attribute; |
| } |
| |
| |
| Attributes Attributes::parse(const string& s) |
| { |
| // Tokenize and parse the value of "attributes". |
| Attributes attributes; |
| |
| vector<string> tokens = strings::tokenize(s, ";\n"); |
| |
| for (size_t i = 0; i < tokens.size(); i++) { |
| const vector<string>& pairs = strings::split(tokens[i], ":", 2); |
| if (pairs.size() != 2 || pairs[0].empty() || pairs[1].empty()) { |
| LOG(FATAL) << "Invalid attribute key:value pair '" << tokens[i] << "'"; |
| } |
| |
| attributes.add(parse(pairs[0], pairs[1])); |
| } |
| |
| return attributes; |
| } |
| |
| |
| bool Attributes::isValid(const Attribute& attribute) |
| { |
| if (!attribute.has_name() || |
| attribute.name() == "" || |
| !attribute.has_type() || |
| !Value::Type_IsValid(attribute.type())) { |
| return false; |
| } |
| |
| if (attribute.type() == Value::SCALAR) { |
| return attribute.has_scalar(); |
| } else if (attribute.type() == Value::RANGES) { |
| return attribute.has_ranges(); |
| } else if (attribute.type() == Value::TEXT) { |
| return attribute.has_text(); |
| } else if (attribute.type() == Value::SET) { |
| // Attributes doesn't support set. |
| return false; |
| } |
| |
| return false; |
| } |
| |
| |
| template <> |
| Value::Scalar Attributes::get( |
| const string& name, |
| const Value::Scalar& scalar) const |
| { |
| foreach (const Attribute& attribute, attributes) { |
| if (attribute.name() == name && |
| attribute.type() == Value::SCALAR) { |
| return attribute.scalar(); |
| } |
| } |
| |
| return scalar; |
| } |
| |
| |
| template <> |
| Value::Ranges Attributes::get( |
| const string& name, |
| const Value::Ranges& ranges) const |
| { |
| foreach (const Attribute& attribute, attributes) { |
| if (attribute.name() == name && |
| attribute.type() == Value::RANGES) { |
| return attribute.ranges(); |
| } |
| } |
| |
| return ranges; |
| } |
| |
| |
| template <> |
| Value::Text Attributes::get( |
| const string& name, |
| const Value::Text& text) const |
| { |
| foreach (const Attribute& attribute, attributes) { |
| if (attribute.name() == name && |
| attribute.type() == Value::TEXT) { |
| return attribute.text(); |
| } |
| } |
| |
| return text; |
| } |
| |
| } // namespace mesos { |