181 lines
6.7 KiB
Java
181 lines
6.7 KiB
Java
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/**
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* Copyright (C) 2007 - 2016 52°North Initiative for Geospatial Open Source
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* Software GmbH
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.n52.wps.algorithm.descriptor;
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import com.google.common.base.Preconditions;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import org.n52.wps.io.data.ILiteralData;
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import org.n52.wps.io.data.binding.literal.LiteralAnyURIBinding;
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import org.n52.wps.io.data.binding.literal.LiteralBase64BinaryBinding;
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import org.n52.wps.io.data.binding.literal.LiteralBooleanBinding;
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import org.n52.wps.io.data.binding.literal.LiteralByteBinding;
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import org.n52.wps.io.data.binding.literal.LiteralDateTimeBinding;
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import org.n52.wps.io.data.binding.literal.LiteralDoubleBinding;
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import org.n52.wps.io.data.binding.literal.LiteralFloatBinding;
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import org.n52.wps.io.data.binding.literal.LiteralIntBinding;
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import org.n52.wps.io.data.binding.literal.LiteralLongBinding;
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import org.n52.wps.io.data.binding.literal.LiteralShortBinding;
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import org.n52.wps.io.data.binding.literal.LiteralStringBinding;
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import org.n52.wps.io.BasicXMLTypeFactory;
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/**
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*
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* @author tkunicki
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*/
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public class LiteralDataInputDescriptor<T extends Class<? extends ILiteralData>> extends InputDescriptor<T> {
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private final String dataType;
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private final String defaultValue;
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private final List<String> allowedValues;
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protected LiteralDataInputDescriptor(Builder builder) {
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super(builder);
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this.dataType = builder.dataType;
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this.defaultValue = builder.defaultValue;
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this.allowedValues = builder.allowedValues != null ?
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Collections.unmodifiableList(builder.allowedValues) :
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Collections.EMPTY_LIST;
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// if allowedValues and defaultValue are set, make sure defaultValue is in set of allowedValues
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Preconditions.checkState(
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!hasAllowedValues() || !hasDefaultValue() || allowedValues.contains(defaultValue),
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"defaultValue of %s not in set of allowedValues", defaultValue);
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}
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public String getDataType() {
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return dataType;
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}
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public boolean hasDefaultValue() {
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return defaultValue != null && defaultValue.length() > 0;
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}
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public String getDefaultValue() {
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return defaultValue;
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}
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public boolean hasAllowedValues() {
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return allowedValues != null && allowedValues.size() > 0;
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}
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public List<String> getAllowedValues() {
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return allowedValues;
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}
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public static <T extends Class<? extends ILiteralData>> Builder<?,T> builder(String identifier, T binding) {
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return new BuilderTyped(identifier, binding);
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}
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// utility functions, quite verbose...
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public static Builder<?,Class<LiteralAnyURIBinding>> anyURIBuilder(String identifier) {
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return builder(identifier, LiteralAnyURIBinding.class);
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}
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public static Builder<?,Class<LiteralBase64BinaryBinding>> base64BinaryBuilder(String identifier) {
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return builder(identifier, LiteralBase64BinaryBinding.class);
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}
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public static Builder<?,Class<LiteralBooleanBinding>> booleanBuilder(String identifier) {
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return builder(identifier, LiteralBooleanBinding.class);
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}
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public static Builder<?,Class<LiteralByteBinding>> byteBuilder(String identifier) {
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return builder(identifier, LiteralByteBinding.class);
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}
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public static Builder<?,Class<LiteralDateTimeBinding>> dateTimeBuilder(String identifier) {
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return builder(identifier, LiteralDateTimeBinding.class);
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}
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public static Builder<?,Class<LiteralDoubleBinding>> doubleBuilder(String identifier) {
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return builder(identifier, LiteralDoubleBinding.class);
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}
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public static Builder<?,Class<LiteralFloatBinding>> floatBuilder(String identifier) {
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return builder(identifier, LiteralFloatBinding.class);
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}
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public static Builder<?,Class<LiteralIntBinding>> intBuilder(String identifier) {
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return builder(identifier, LiteralIntBinding.class);
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}
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public static Builder<?,Class<LiteralLongBinding>> longBuilder(String identifier) {
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return builder(identifier, LiteralLongBinding.class);
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}
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public static Builder<?,Class<LiteralShortBinding>> shortBuilder(String identifier) {
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return builder(identifier, LiteralShortBinding.class);
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}
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public static Builder<?,Class<LiteralStringBinding>> stringBuilder(String identifier) {
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return builder(identifier, LiteralStringBinding.class);
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}
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private static class BuilderTyped<T extends Class<? extends ILiteralData>> extends Builder<BuilderTyped<T>, T> {
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public BuilderTyped(String identifier, T binding) {
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super(identifier, binding);
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}
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@Override
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protected BuilderTyped self() {
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return this;
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}
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}
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public static abstract class Builder<B extends Builder<B,T>, T extends Class<? extends ILiteralData>> extends InputDescriptor.Builder<B,T> {
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private final String dataType;
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private String defaultValue;
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private List<String> allowedValues;
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protected Builder(String identifier, T binding) {
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super(identifier, binding);
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this.dataType = Preconditions.checkNotNull(
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BasicXMLTypeFactory.getXMLDataTypeforBinding(binding),
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"Unable to resolve XML DataType for binding class %s",
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binding);
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}
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public B defaultValue(String defaultValue) {
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this.defaultValue = defaultValue;
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return self();
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}
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public B allowedValues(Class<? extends Enum> allowedValues) {
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Enum[] constants = allowedValues.getEnumConstants();
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List<String> names = new ArrayList<String>(constants.length);
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for (Enum constant : constants) { names.add(constant.name()); }
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return allowedValues(names);
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}
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public B allowedValues(String[] allowedValues) {
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return allowedValues(Arrays.asList(allowedValues));
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}
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public B allowedValues(List<String> allowedValues) {
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this.allowedValues = allowedValues;
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return self();
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}
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@Override
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public LiteralDataInputDescriptor<T> build() {
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return new LiteralDataInputDescriptor<T>(this);
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}
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}
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}
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