| /**************************************************************** |
| * 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. * |
| ****************************************************************/ |
| |
| package org.apache.james.jmap.draft.model; |
| |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.stream.Collectors; |
| |
| import com.fasterxml.jackson.databind.annotation.JsonDeserialize; |
| import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder; |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.base.MoreObjects; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| |
| @JsonDeserialize(builder = FilterOperator.Builder.class) |
| public class FilterOperator implements Filter { |
| |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| @JsonPOJOBuilder(withPrefix = "") |
| public static class Builder { |
| |
| private Operator operator; |
| private final ImmutableList.Builder<Filter> conditionsBuilder; |
| |
| private Builder() { |
| conditionsBuilder = ImmutableList.builder(); |
| } |
| |
| public Builder operator(Operator operator) { |
| Preconditions.checkNotNull(operator); |
| this.operator = operator; |
| return this; |
| } |
| |
| public Builder conditions(List<Filter> conditions) { |
| this.conditionsBuilder.addAll(conditions); |
| return this; |
| } |
| |
| public FilterOperator build() { |
| Preconditions.checkState(operator != null, "'operator' is mandatory"); |
| ImmutableList<Filter> conditions = conditionsBuilder.build(); |
| Preconditions.checkState(!conditions.isEmpty(), "'conditions' is mandatory"); |
| return new FilterOperator(operator, conditions); |
| } |
| } |
| |
| public static FilterOperator or(Filter... filters) { |
| Preconditions.checkArgument(filters.length > 0); |
| return builder().operator(Operator.OR).conditions(ImmutableList.copyOf(filters)).build(); |
| } |
| |
| public static FilterOperator and(Filter... filters) { |
| Preconditions.checkArgument(filters.length > 0); |
| return builder().operator(Operator.AND).conditions(ImmutableList.copyOf(filters)).build(); |
| } |
| |
| |
| public static FilterOperator not(Filter... filters) { |
| Preconditions.checkArgument(filters.length > 0); |
| return builder().operator(Operator.NOT).conditions(ImmutableList.copyOf(filters)).build(); |
| } |
| |
| private final Operator operator; |
| private final List<Filter> conditions; |
| |
| @VisibleForTesting FilterOperator(Operator operator, List<Filter> conditions) { |
| this.operator = operator; |
| this.conditions = conditions; |
| } |
| |
| public Operator getOperator() { |
| return operator; |
| } |
| |
| public List<Filter> getConditions() { |
| return conditions; |
| } |
| |
| @Override |
| public final boolean equals(Object obj) { |
| if (obj instanceof FilterOperator) { |
| FilterOperator other = (FilterOperator) obj; |
| return Objects.equals(this.operator, other.operator) |
| && Objects.equals(this.conditions, other.conditions); |
| } |
| return false; |
| } |
| |
| @Override |
| public final int hashCode() { |
| return Objects.hash(operator, conditions); |
| } |
| |
| @Override |
| public String toString() { |
| return prettyPrint(""); |
| } |
| |
| @Override |
| public String prettyPrint(String indentation) { |
| return indentation |
| + MoreObjects.toStringHelper(getClass()) |
| .add("operator", operator) |
| .toString() |
| + "\n" |
| + conditionListToString(indentation + " "); |
| } |
| |
| private String conditionListToString(String indentation) { |
| return conditions.stream() |
| .map(condition -> condition.prettyPrint(indentation)) |
| .collect(Collectors.joining()); |
| } |
| } |