thredds.catalog.InvService Maven / Gradle / Ivy
/*
* 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
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* 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
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* any support, consulting, training or assistance of any kind with regard
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* 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
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*/
package thredds.catalog;
import java.util.*;
/**
* A Service is an abstraction for an internet service, such as a data server, FTP, etc.
*
* @author john caron
*/
public class InvService {
// standard TDS services
public static final InvService cdmremote = new InvService("cdmremote", ServiceType.CdmRemote.toString(), "/thredds/cdmremote/", "", "");
public static final InvService cdmrfeature = new InvService("cdmrfeature", ServiceType.CdmrFeature.toString(), "/thredds/cdmrfeature/", "", "");
public static final InvService fileServer = new InvService("fileServer", ServiceType.HTTPServer.toString(), "/thredds/fileServer/", "", "");
public static final InvService latest = new InvService("latest", ServiceType.RESOLVER.toString(), "", "", "");
public static final InvService ncss = new InvService("ncss", ServiceType.NetcdfSubset.toString(), "/thredds/ncss/", "", "");
public static final InvService opendap = new InvService("opendap", ServiceType.OPENDAP.toString(), "/thredds/dodsC/", "", "");
public static final InvService dap4 = new InvService("dap4", ServiceType.DAP4.toString(), "/thredds/dap4/", "", "");
public static final InvService wcs = new InvService("wcs", ServiceType.WCS.toString(), "/thredds/wcs/", "", "");
public static final InvService wms = new InvService("wms", ServiceType.WMS.toString(), "/thredds/wms/", "", "");
//NGDC addition 5/10/2011
public static final InvService ncml = new InvService("ncml", ServiceType.NCML.toString(), "/thredds/ncml/", "", "");
public static final InvService uddc = new InvService("uddc", ServiceType.UDDC.toString(), "/thredds/uddc/", "", "");
public static final InvService iso = new InvService("iso", ServiceType.ISO.toString(), "/thredds/iso/", "", "");
public static final InvService ncJSON = new InvService("ncjason", ServiceType.ncJSON.toString(), "/thredds/ncjason/", "", "");
public static final InvService h5Service = new InvService("h5service", ServiceType.H5Service.toString(), "/thredds/h5service/", "", "");
//////////////////////////////////
private String name;
private String base;
private String suffix;
private String desc;
private ServiceType type = null;
private java.net.URI uri = null;
private List nestedServices = new ArrayList();
private List properties = new ArrayList();
private List roots = new ArrayList(); // deprecated
private StringBuilder log = new StringBuilder();
/**
* Constructor.
*
* @param name : name to show to the user
* @param serviceTypeName : ServiceType
* @param base : base for forming URL
* @param suffix : suffix for forming URL, may be null.
* @param desc : human readable description, may be null.
*/
public InvService(String name, String serviceTypeName, String base, String suffix, String desc) {
this.name = name;
this.type = ServiceType.findType(serviceTypeName);
this.base = (base == null) ? "" : base.trim();
this.suffix = (suffix == null) ? "" : suffix.trim();
this.desc = desc;
// deal with strange service types
if (type == null) {
log.append(" ** InvService: non-standard type =(").append(serviceTypeName).append(") for service (").append(name).append(")");
type = ServiceType.getType(serviceTypeName);
}
if (name == null) {
log.append(" ** InvService has no name");
}
}
/**
* Get the service name: referenced by dataset and access elements.
* @return the service name
*/
public String getName() {
return name;
}
/**
* get the base URL for the service
* @return the base URL for the service
*/
public String getBase() {
return base;
}
/**
* get the Service Type
* @return the Service Type
*/
public ServiceType getServiceType() {
return type;
}
/**
* Get the suffix; may be null
* @return the suffix; may be null
*/
public String getSuffix() {
return suffix;
}
/**
* Get the "human readable" description; use ServiceType.toString() if not set
* @return the "human readable" description
*/
public String getDescription() {
return (desc != null) ? desc : type.toString();
}
/**
* Get properties for this service.
*
* @return List of type Property. May be empty, but not null.
*/
public java.util.List getProperties() {
return properties;
}
/**
* Get dataset roots.
*
* @return List of InvProperty. May be empty, may not be null.
*/
public java.util.List getDatasetRoots() {
return roots;
}
/**
* Get named property.
*
* @param name match this name
* @return String value of Property or null if not exist.
*/
public String findProperty(String name) {
InvProperty result = null;
for (InvProperty p : properties) {
if (p.getName().equals(name))
result = p;
}
return (result == null) ? null : result.getValue();
}
public InvService findNestedService(String name) {
for (InvService s : nestedServices) {
if (s.getName().equals(name)) return s;
if (s.type == ServiceType.COMPOUND) {
InvService result = s.findNestedService(name);
if (result != null) return result;
}
}
return null;
}
/**
* string representation
*/
public String toString() {
return "name:(" + name + ") type:(" + type + ") base:(" + base + ") suffix:(" + suffix + ")";
}
/**
* InvServices with same values are equal
*/
public boolean equals(Object o) {
if (this == o)
return true;
if (!(o instanceof InvService))
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 + getBase().hashCode();
result = 37 * result + getServiceType().hashCode();
if (null != getSuffix())
result = 37 * result + getSuffix().hashCode();
result = 37 * result + getProperties().hashCode();
result = 37 * result + nestedServices.hashCode();
hashCode = result;
}
return hashCode;
}
private volatile int hashCode = 0; // Bloch, item 8
/**
* @return debugging info
*/
public String dump() {
return dump(0);
}
String dump(int n) {
StringBuilder buff = new StringBuilder(200);
buff.setLength(0);
buff.append(InvDatasetImpl.indent(n)).append("Service ").append(this).append("\n");
for (InvService s : getServices()) {
buff.append(s.dump(n + 2));
}
List props = getProperties();
if (props.size() > 0) {
String indent = InvDatasetImpl.indent(n + 2);
buff.append(indent);
buff.append("Properties:\n");
for (InvProperty p : props) {
buff.append(InvDatasetImpl.indent(n + 4)).append(p).append("\n");
}
}
return buff.toString();
}
////////////////////////////////////////////////////////////////////////////
/**
* Add a nested service to a service of type COMPOUND.
* @param service add this
*/
public void addService(InvService service) {
nestedServices.add(service);
}
/**
* Add a property
* @param p add this
*/
public void addProperty(InvProperty p) {
properties.add(p);
}
/**
* Add Dataset Root (1.0), key = path, value = location.
*
* @param root add this
* @deprecated use InvCatalogImpl
*/
public void addDatasetRoot(InvProperty root) {
roots.add(root);
}
/**
* Get nested services; only if getServiceType() == ServiceType.COMPOUND.
*
* @return List of type InvService. May be empty, but not null.
*/
public java.util.List getServices() {
return nestedServices;
}
/**
* Get full name for this Service, which has all parent collection names.
*
* @deprecated services should always be at top level.
* @return name
*/
public String getFullName() {
return name;
}
protected boolean check(StringBuilder out) {
boolean isValid = true;
if (log.length() > 0) {
out.append(log);
}
// compound services
if (getServiceType() == ServiceType.COMPOUND) {
if (getServices().size() < 1) {
out.append(" ** InvService (").append(getName()).append(") type COMPOUND must have a nested service\n");
isValid = false;
}
} else {
if (getServices().size() > 0) {
out.append(" ** InvService(").append(getName()).append(") type ").append(getServiceType()).append(" may not have nested services\n");
isValid = false;
}
}
// check urlPath is ok
try {
uri = new java.net.URI(base);
} catch (java.net.URISyntaxException e) {
out.append(" ** InvService(").append(getName()).append(") invalid base URL =(").append(base).append(")");
isValid = false;
}
return isValid;
}
/**
* See if the service Base is reletive
* @return true if the service Base is reletive
*/
public boolean isRelativeBase() {
if (getServiceType() == ServiceType.COMPOUND)
return true;
if (uri == null) {
try {
uri = new java.net.URI(base);
} catch (java.net.URISyntaxException e) {
throw new IllegalArgumentException(e.getMessage());
}
}
return !uri.isAbsolute();
}
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