142 lines
5.0 KiB
Java
142 lines
5.0 KiB
Java
package org.gcube.datatransfer.resolver.catalogue.resource;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Properties;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* The Class CatalogueStaticConfigurations.
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*
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* @author Francesco Mangiacrapa at ISTI-CNR Pisa (Italy)
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* Apr 6, 2020
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*/
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public class CatalogueStaticConfigurations{
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/** The Constant LOG. */
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private static final Logger LOG = LoggerFactory.getLogger(CatalogueStaticConfigurations.class);
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/** The Constant PREFIX_FOR_PORTAL_RELATIVE_URL_TO_CATALOGUE. */
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static final String PREFIX_FOR_PORTAL_RELATIVE_URL_TO_CATALOGUE = "PREFIX_FOR_PORTAL_RELATIVE_URL_TO_CATALOGUE";
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/** The Constant BALANCER_AND_CKAN_PREFIXES_USED_FOR_HOSTNAME. */
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static final String BALANCER_AND_CKAN_PREFIXES_USED_FOR_HOSTNAME = "BALANCER_AND_CKAN_PREFIXES_USED_FOR_HOSTNAME";
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/** The Constant DATACATALOGUE_URLs_CONFIGURATIONS_PROPERTIES. */
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static final String DATACATALOGUE_URLs_CONFIGURATIONS_PROPERTIES = "datacatalogue_urls_configurations.properties";
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/** The prefix to be used for catalogue URL. */
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private String prefixToBeUsedForCatalogueURL;
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/** The prefixes used for ckan hostname. */
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private List<String> prefixesUsedForCkanHostname;
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/**
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* Instantiates a new static configurations.
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*/
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public CatalogueStaticConfigurations() {
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loadCataloguePortalURLsConfigurations();
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}
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/**
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* Load catalogue portal URLs configurations.
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*/
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private void loadCataloguePortalURLsConfigurations(){
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Properties prop = new Properties();
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try {
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InputStream in = CkanCatalogueConfigurationsReader.class.getResourceAsStream(DATACATALOGUE_URLs_CONFIGURATIONS_PROPERTIES);
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// load a properties file
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prop.load(in);
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// get the property value
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String property = prop.getProperty(PREFIX_FOR_PORTAL_RELATIVE_URL_TO_CATALOGUE);
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prefixToBeUsedForCatalogueURL = property;
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// get the property value
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property = prop.getProperty(BALANCER_AND_CKAN_PREFIXES_USED_FOR_HOSTNAME);
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if(property.contains(",")) {
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String[] values = property.split(",");
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prefixesUsedForCkanHostname = Arrays.asList(values);
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}else {
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prefixesUsedForCkanHostname = Arrays.asList(property);
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}
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} catch (IOException e) {
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LOG.error("An error occurred on read property file: "+DATACATALOGUE_URLs_CONFIGURATIONS_PROPERTIES, e);
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}
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}
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/**
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* Extract catalogue name from a ckan or balancer hostname.
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*
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* @param privateCKANCatalogueURL the private CKAN catalogue URL
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* @return the catalogue name
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*
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* e.g. Returns "-bb" for "ckan-bb"
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*/
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private String extractCatalogueName(String privateCKANCatalogueURL) {
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String toPrivateCKANCatalogueURL = privateCKANCatalogueURL;
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LOG.debug("Private Catalogue URL is: "+toPrivateCKANCatalogueURL);
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//removing protocol HTTPs or HTTP
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toPrivateCKANCatalogueURL = toPrivateCKANCatalogueURL.replaceFirst("https://", "");
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toPrivateCKANCatalogueURL = toPrivateCKANCatalogueURL.replaceFirst("http://", "");
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LOG.debug("Removed HTTP[s] protocol, now I have: "+toPrivateCKANCatalogueURL);
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for (String prefix :prefixesUsedForCkanHostname) {
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LOG.trace(prefix+ " found as prefix of: "+privateCKANCatalogueURL);
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if(toPrivateCKANCatalogueURL.startsWith(prefix)) {
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toPrivateCKANCatalogueURL = toPrivateCKANCatalogueURL.replaceFirst(prefix, ""); //removing prefix
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String catalogueName = toPrivateCKANCatalogueURL.substring(0,toPrivateCKANCatalogueURL.indexOf(".d4science"));
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LOG.info("Catalogue Name extration returning value: "+catalogueName);
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return catalogueName;
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}
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}
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LOG.info("Catalogue Name extration returning null");
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return null;
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}
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/**
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* Builds the relative URL to public catalogue gateway.
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*
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* @param privateCKANCatalogueURL the private CKAN catalogue URL
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*
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* @return the relative URL that must be used for Public Catalogue Gateway
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*/
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public String buildRelativeURLToPublicCatalogueGateway(String privateCKANCatalogueURL) {
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LOG.info("Trying to build the Catalogue Gateway URL using the prefix: "+prefixToBeUsedForCatalogueURL);
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LOG.debug("The prefixes to build the URL for Public Catalogue published at Gateway level are: "+prefixesUsedForCkanHostname);
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String catalogueName = extractCatalogueName(privateCKANCatalogueURL);
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catalogueName = catalogueName == null? "":catalogueName;
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String toNormalizedNameForURL = catalogueName.replaceAll("\\.", "-");
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String publicCatalogueGatewayURL = String.format("%s%s", prefixToBeUsedForCatalogueURL,toNormalizedNameForURL);
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LOG.info("The Catalogue Gateway URL built is: "+publicCatalogueGatewayURL);
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return publicCatalogueGatewayURL;
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}
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/**
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* Gets the prefixes used for ckan hostname.
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*
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* @return the prefixes used for ckan hostname
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*/
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public List<String> getPrefixesUsedForCkanHostname() {
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return prefixesUsedForCkanHostname;
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}
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/**
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* Gets the prefix to be used for catalogue URL.
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*
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* @return the prefix to be used for catalogue URL
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*/
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public String getPrefixToBeUsedForCatalogueURL() {
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return prefixToBeUsedForCatalogueURL;
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}
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} |