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/*
* 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.sis.parameter;
import java.util.Map;
import java.util.Objects;
import javax.xml.bind.annotation.XmlType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlSeeAlso;
import javax.xml.bind.annotation.XmlSchemaType;
import org.opengis.parameter.ParameterDirection;
import org.opengis.parameter.ParameterDescriptor;
import org.opengis.parameter.ParameterDescriptorGroup;
import org.opengis.parameter.GeneralParameterDescriptor;
import org.apache.sis.referencing.AbstractIdentifiedObject;
import org.apache.sis.internal.referencing.WKTKeywords;
import org.apache.sis.io.wkt.FormattableObject;
import org.apache.sis.io.wkt.Formatter;
import org.apache.sis.util.resources.Errors;
import org.apache.sis.util.ComparisonMode;
import org.apache.sis.util.Debug;
import static org.apache.sis.util.Utilities.deepEquals;
import static org.apache.sis.internal.jaxb.referencing.CC_GeneralOperationParameter.DEFAULT_OCCURRENCE;
/**
* Abstract definition of a parameter or group of parameters used by a coordinate operation or a process.
* This interface combines information provided by Referencing by Coordinates (ISO 19111),
* Service Metadata (ISO 19115) and Web Processing Services (WPS) standards.
* The main information are:
*
* <table class="sis">
* <caption>Main parameter properties</caption>
* <tr>
* <th>Getter method</th>
* <th class="sep">ISO 19111</th>
* <th class="sep">WPS</th>
* <th class="sep">ISO 19115</th>
* <th class="sep">Remarks</th>
* </tr>
* <tr>
* <td>{@link #getName() getName()}</td>
* <td class="sep">{@code name}</td>
* <td class="sep">{@code Identifier}</td>
* <td class="sep">{@code name}</td>
* <td class="sep">See {@link Parameters#getMemberName(ParameterDescriptor)} for {@code MemberName} ↔ {@code Identifier} mapping.</td>
* </tr>
* <!-- "Title" (WPS) equivalent to "designation" (Feature), but not yet provided. -->
* <tr>
* <td>{@link #getDescription()}</td>
* <td class="sep"></td>
* <td class="sep">{@code Abstract}</td>
* <td class="sep">{@code description}</td>
* <td class="sep">Also known as “definition”.</td>
* </tr>
* <tr>
* <td>{@link #getDirection()}</td>
* <td class="sep"></td>
* <td class="sep"></td>
* <td class="sep">{@code direction}</td>
* <td class="sep">Tells if the parameter is a WPS {@code Input} or {@code Output} structure.</td>
* </tr>
* <tr>
* <td>{@link #getMinimumOccurs()}</td>
* <td class="sep">{@code minimumOccurs}</td>
* <td class="sep">{@code MinOccurs}</td>
* <td class="sep">{@code optionality}</td>
* <td class="sep">{@code optionality   = (minimumOccurs > 0)}</td>
* </tr>
* <tr>
* <td>{@link #getMaximumOccurs()}</td>
* <td class="sep">{@code maximumOccurs}</td>
* <td class="sep">{@code MaxOccurs}</td>
* <td class="sep">{@code repeatability}</td>
* <td class="sep">{@code repeatability = (maximumOccurs > 1)}</td>
* </tr>
* </table>
*
* @author Martin Desruisseaux (Geomatys)
* @version 0.6
* @since 0.5
* @module
*/
@XmlType(name = "AbstractGeneralOperationParameterType", propOrder = {
"nonDefaultMinimumOccurs",
"nonDefaultMaximumOccurs"
})
@XmlSeeAlso({
DefaultParameterDescriptor.class,
DefaultParameterDescriptorGroup.class
})
public abstract class AbstractParameterDescriptor extends AbstractIdentifiedObject implements GeneralParameterDescriptor {
/**
* Serial number for inter-operability with different versions.
*/
private static final long serialVersionUID = -4346475760810353590L;
/**
* The minimum number of times that values for this parameter group are required, as an unsigned short.
* We use a short because this value is usually either 0 or 1, or a very small number like 2 or 3.
* A large number would be a bad idea with this parameter implementation.
*
* <p><b>Consider this field as final!</b>
* This field is modified only at unmarshalling time by {@link #setNonDefaultMinimumOccurs(Integer)}</p>
*/
private short minimumOccurs;
/**
* The maximum number of times that values for this parameter group are required, as an unsigned short.
* Value {@code 0xFFFF} (or -1) means an unrestricted number of occurrences.
*
* <p>We use a short because this value is usually 1 or a very small number like 2 or 3. This also serve
* as a safety since a large number would be a bad idea with this parameter implementation.</p>
*
* <p><b>Consider this field as final!</b>
* This field is modified only at unmarshalling time by {@link #setNonDefaultMaximumOccurs(Integer)}</p>
*/
private short maximumOccurs;
/**
* Constructs a parameter descriptor from a set of properties. The properties map is given unchanged to the
* {@linkplain AbstractIdentifiedObject#AbstractIdentifiedObject(Map) super-class constructor}.
* The following table is a reminder of main (not all) properties:
*
* <table class="sis">
* <caption>Recognized properties (non exhaustive list)</caption>
* <tr>
* <th>Property name</th>
* <th>Value type</th>
* <th>Returned by</th>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#NAME_KEY}</td>
* <td>{@link org.opengis.metadata.Identifier} or {@link String}</td>
* <td>{@link #getName()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#ALIAS_KEY}</td>
* <td>{@link org.opengis.util.GenericName} or {@link CharSequence} (optionally as array)</td>
* <td>{@link #getAlias()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#IDENTIFIERS_KEY}</td>
* <td>{@link org.opengis.metadata.Identifier} (optionally as array)</td>
* <td>{@link #getIdentifiers()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#REMARKS_KEY}</td>
* <td>{@link org.opengis.util.InternationalString} or {@link String}</td>
* <td>{@link #getRemarks()}</td>
* </tr>
* </table>
*
* @param properties the properties to be given to the identified object.
* @param minimumOccurs the {@linkplain #getMinimumOccurs() minimum number of times} that values
* for this parameter group are required, or 0 if no restriction.
* @param maximumOccurs the {@linkplain #getMaximumOccurs() maximum number of times} that values
* for this parameter group are required, or {@link Integer#MAX_VALUE} if no restriction.
*/
protected AbstractParameterDescriptor(final Map<String,?> properties,
final int minimumOccurs, final int maximumOccurs)
{
super(properties);
this.minimumOccurs = (short) minimumOccurs;
this.maximumOccurs = (short) maximumOccurs;
if (minimumOccurs < 0 || minimumOccurs > maximumOccurs || maximumOccurs == 0) {
throw new IllegalArgumentException(Errors.getResources(properties).getString(
Errors.Keys.IllegalRange_2, minimumOccurs, maximumOccurs));
}
if (maximumOccurs > 0xFFFE && maximumOccurs != Integer.MAX_VALUE) {
throw new IllegalArgumentException(Errors.getResources(properties).getString(
Errors.Keys.TooManyOccurrences_2, 0xFFFE, super.getName().getCode()));
}
}
/**
* Constructs a new parameter descriptor with the same values than the specified one.
* This copy constructor provides a way to convert an arbitrary implementation into a SIS one or a
* user-defined one (as a subclass), usually in order to leverage some implementation-specific API.
*
* <p>This constructor performs a shallow copy, i.e. the properties are not cloned.</p>
*
* @param descriptor the object to shallow copy.
*/
protected AbstractParameterDescriptor(final GeneralParameterDescriptor descriptor) {
super(descriptor);
minimumOccurs = crop(descriptor.getMinimumOccurs());
maximumOccurs = crop(descriptor.getMaximumOccurs());
}
// NOTE: There is no 'castOrCopy' static method in this class because AbstractParameterDescriptor is abstract.
// If nevertheless we choose to add such method in the future, then CC_GeneralOperationParameter.getElement()
// should be simplified.
/**
* Crops the given integer in the [0 … 0xFFFF] range.
*/
private static short crop(final int n) {
return (short) Math.max(0, Math.min(0xFFFF, n));
}
/**
* Returns the GeoAPI interface implemented by this class.
* The default implementation returns {@code GeneralParameterDescriptor.class}.
* Subclasses implementing a more specific GeoAPI interface shall override this method.
*
* @return the parameter descriptor interface implemented by this class.
*/
@Override
public Class<? extends GeneralParameterDescriptor> getInterface() {
return GeneralParameterDescriptor.class;
}
/**
* Returns an indication if the parameter is an input to the service, an output or both.
* The default implementation returns {@link ParameterDirection#IN}.
*
* @return indication if the parameter is an input or output to the service, or {@code null} if unspecified.
*/
@Override
public ParameterDirection getDirection() {
return ParameterDirection.IN;
}
/**
* The minimum number of times that values for this parameter group or parameter are required.
* A value of 0 means an optional parameter.
*
* @return the minimum occurrence.
*/
@Override
public int getMinimumOccurs() {
return Short.toUnsignedInt(minimumOccurs);
}
/**
* The maximum number of times that values for this parameter group or parameter can be included.
* A value greater than 1 means a repeatable parameter.
*
* @return the maximum occurrence.
*/
@Override
public int getMaximumOccurs() {
return (maximumOccurs != -1) ? Short.toUnsignedInt(maximumOccurs) : Integer.MAX_VALUE;
}
/**
* Compares the specified object with this parameter for equality.
*
* @return {@inheritDoc}
*/
@Override
public boolean equals(final Object object, final ComparisonMode mode) {
if (super.equals(object, mode)) {
switch (mode) {
case STRICT: {
final AbstractParameterDescriptor that = (AbstractParameterDescriptor) object;
return minimumOccurs == that.minimumOccurs &&
maximumOccurs == that.maximumOccurs;
}
default: {
final GeneralParameterDescriptor that = (GeneralParameterDescriptor) object;
return getMinimumOccurs() == that.getMinimumOccurs() &&
getMaximumOccurs() == that.getMaximumOccurs() &&
Objects.equals(getDirection(), that.getDirection()) &&
deepEquals(getDescription(), that.getDescription(), mode);
}
}
}
return false;
}
/**
* Returns a string representation of this descriptor.
*
* <p>This method is for information purpose only and may change in future SIS version.</p>
*/
@Override
public String toString() {
if (this instanceof ParameterDescriptorGroup) {
return ParameterFormat.sharedFormat(this);
} else {
return super.toString();
}
}
/**
* Prints a string representation of this descriptor to the {@linkplain System#out standard output stream}.
* If a {@linkplain java.io.Console console} is attached to the running JVM (i.e. if the application is run
* from the command-line and the output is not redirected to a file) and if Apache SIS thinks that the console
* supports the ANSI escape codes (a.k.a. X3.64), then a syntax coloring will be applied.
*
* <p>This is a convenience method for debugging purpose and for console applications.</p>
*/
@Debug
@Override
public void print() {
if (this instanceof ParameterDescriptorGroup) {
ParameterFormat.print(this);
} else {
super.print();
}
}
/**
* Formats this descriptor as a pseudo-<cite>Well Known Text</cite> element. The WKT specification
* does not define any representation of parameter descriptors. Apache SIS fallback on a list of
* {@linkplain DefaultParameterDescriptor#formatTo(Formatter) descriptors}.
* The text formatted by this method is {@linkplain Formatter#setInvalidWKT flagged as invalid WKT}.
*
* @param formatter the formatter where to format the inner content of this WKT element.
* @return {@code "Parameter"} or {@code "ParameterGroup"}.
*/
@Override
protected String formatTo(final Formatter formatter) {
super.formatTo(formatter);
formatter.setInvalidWKT(this, null);
if (this instanceof ParameterDescriptorGroup) {
for (GeneralParameterDescriptor parameter : ((ParameterDescriptorGroup) this).descriptors()) {
if (!(parameter instanceof FormattableObject)) {
if (parameter instanceof ParameterDescriptor<?>) {
parameter = new DefaultParameterDescriptor<>((ParameterDescriptor<?>) parameter);
} else if (parameter instanceof ParameterDescriptorGroup) {
parameter = new DefaultParameterDescriptorGroup((ParameterDescriptorGroup) parameter);
} else {
continue;
}
}
formatter.newLine();
formatter.append((FormattableObject) parameter);
}
return WKTKeywords.ParameterGroup;
} else if (this instanceof ParameterDescriptor<?>) {
final Object defaultValue = ((ParameterDescriptor<?>) this).getDefaultValue();
if (defaultValue != null) {
formatter.appendAny(defaultValue);
}
formatter.append(((ParameterDescriptor<?>) this).getUnit());
}
return WKTKeywords.Parameter;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
//////// ////////
//////// XML support with JAXB ////////
//////// ////////
//////// The following methods are invoked by JAXB using reflection (even if ////////
//////// they are private) or are helpers for other methods invoked by JAXB. ////////
//////// Those methods can be safely removed if Geographic Markup Language ////////
//////// (GML) support is not needed. ////////
//////// ////////
//////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Constructs a new object in which every attributes are set to a null value.
* <strong>This is not a valid object.</strong> This constructor is strictly
* reserved to JAXB, which will assign values to the fields using reflexion.
*/
AbstractParameterDescriptor() {
super(org.apache.sis.internal.referencing.NilReferencingObject.INSTANCE);
minimumOccurs = DEFAULT_OCCURRENCE; // Default value if XML element is omitted.
maximumOccurs = DEFAULT_OCCURRENCE;
}
/**
* Invoked by JAXB for marshalling the {@link #minimumOccurs} value. Omit marshalling of this
* {@code gml:minimumOccurs} element if its value is equals to the default value, which is 1.
*/
@XmlElement(name = "minimumOccurs")
@XmlSchemaType(name = "nonNegativeInteger")
private Integer getNonDefaultMinimumOccurs() {
final int n = getMinimumOccurs();
return (n != DEFAULT_OCCURRENCE) ? n : null;
}
/**
* Invoked by JAXB for marshalling the {@link #maximumOccurs} value. Omit marshalling of this
* {@code gml:maximumOccurs} element if its value is equals to the default value, which is 1.
*
* <p>This property should not be marshalled in {@link DefaultParameterDescriptor} objects (the GML schema
* does not allow that). It should be marshalled only for {@link DefaultParameterDescriptorGroup} objects.
* Since SIS marshals {@code minimumOccurs} and {@code maximumOccurs} properties only when their value is
* different than 1, and since {@code ParameterDescriptor} should not have a {@code maximumOccurs} value
* different than 1 when ISO 19111 compliance is desired, the GML document should be valid in most cases.</p>
*/
@XmlElement(name = "maximumOccurs")
@XmlSchemaType(name = "nonNegativeInteger")
private Integer getNonDefaultMaximumOccurs() {
final int n = getMaximumOccurs();
return (n != DEFAULT_OCCURRENCE) ? n : null;
}
/**
* Invoked by JAXB for unmarshalling the {@link #minimumOccurs} value.
*/
private void setNonDefaultMinimumOccurs(final Integer n) {
minimumOccurs = (n != null) ? crop(n) : DEFAULT_OCCURRENCE;
}
/**
* Invoked by JAXB for unmarshalling the {@link #maximumOccurs} value.
*/
private void setNonDefaultMaximumOccurs(final Integer n) {
maximumOccurs = (n != null) ? crop(n) : DEFAULT_OCCURRENCE;
}
}