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The NetCDF-Java Library is a Java interface to NetCDF files,
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// $Id: QueryCapability.java 48 2006-07-12 16:15:40Z caron $
/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
* written permission is obtained from UCAR/Unidata. The user also
* understands that UCAR/Unidata is not obligated to provide the user with
* any support, consulting, training or assistance of any kind with regard
* to the use, operation and performance of this software nor to provide
* the user with any updates, revisions, new versions or "bug fixes."
*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package thredds.catalog.query;
import java.util.*;
/**
* Implementation of a thredds DQC object.
*
* @author john caron
*/
public class QueryCapability {
private String createFrom, name, version;
private Query query;
private ArrayList selectors = new ArrayList(); // Selector
private ArrayList uniqueSelectors = new ArrayList(); // no duplicate ids
private ArrayList userInterfaces = new ArrayList();
private Selector ss = null;
private boolean fatalError = false;
private StringBuffer errLog = new StringBuffer();
// package private
QueryCapability() { }
/**
* Construct from fields in XML catalog.
* @param urlString the DQC document URI
* @param name name of DQC document
* @param version version string
*/
public QueryCapability( String urlString, String name, String version) {
this.createFrom = urlString;
this.name = name;
this.version = version;
}
/**
* Append an error message to the message log. Call check() to get the log when
* everything is done.
* @param message append this message to log
* @param fatal true if this is a fatal error.
*/
public void appendErrorMessage( String message, boolean fatal) {
errLog.append( message);
errLog.append( "\n");
fatalError = fatalError || fatal;
}
public String getErrorMessages() { return errLog.toString(); }
public boolean hasFatalError() { return fatalError; }
public void addSelector( Selector s) { selectors.add(s); }
public void setQuery( Query q) { this.query = q; }
public String getName() { return name; }
public String getVersion() { return version; }
public Query getQuery() { return query; }
public ArrayList getSelectors() { return selectors; }
public ArrayList getAllUniqueSelectors() { return uniqueSelectors; }
public String getCreateFrom() { return( this.createFrom ); }
/** Get ServiceSelector */
public Selector getServiceSelector() { return ss; }
/** Set ServiceSelector */
public void setServiceSelector( Selector ss) { this.ss = ss; }
public void addUserInterface( Object s) { userInterfaces.add(s); }
public ArrayList getUserInterfaces( ) { return userInterfaces; }
/** String representation */
public String toString() {
return "name:<"+name+">";
}
public void addUniqueSelector( Selector s) {
if (!uniqueSelectors.contains(s))
uniqueSelectors.add(s);
selectors.add( s);
}
//////////////////////////////////////////////////////////////////////////////
/* boolean validate(StringBuffer out, boolean show) {
boolean isValid = true;
return isValid;
} */
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof QueryCapability)) return false;
return o.hashCode() == this.hashCode();
}
/** Override Object.hashCode() to implement equals. */
public int hashCode() {
if (hashCode == 0) {
int result = 17;
result = 37*result + getName().hashCode();
result = 37*result + getQuery().hashCode();
result = 37*result + getSelectors().hashCode();
hashCode = result;
}
return hashCode;
}
private volatile int hashCode = 0; // Bloch, item 8
}