Neste tutorial voc\u00ea aprender\u00e1 como interagir com o cat\u00e1logo do GeoServer. O objetivo \u00e9 criar um servi\u00e7o simples que ir\u00e1 interagir com os dados das FeatureTypes e DataStores.<\/p>\n
Primeiro criaremos nosso servi\u00e7o, o qual chamaremos de CatalogLister e realizar\u00e1 as seguinte opera\u00e7\u00f5es: listar todos os datastores e featuretypes do cat\u00e1logo.<\/p>\n
[source language=”:Java”]
\npublic class CatalogLister {<\/p>\n
public void listDataStores( OutputStream output ) {
\n }<\/p>\n
public void listFeatureTypes( OutputStream output ) {
\n }<\/p>\n
}
\n[\/source]<\/p>\n
A primeira coisa que que faremos \u00e9 uma refer\u00eancia ao pr\u00f3prio cat\u00e1logo. Adicionando ao construtor um cat\u00e1logo como par\u00e2metro.<\/p>\n
[source language=”:Java”]
\nGeoServerCatalog catalog;<\/p>\n
public CatalogLister( GeoServerCatalog catalog ) {
\n this.catalog = catalog;
\n}
\n[\/source]<\/p>\n
Faremos primeiro o m\u00e9todo para listar as DataStores. Implementando esta opera\u00e7\u00e3o, n\u00f3s acharemos cada DataStore e os imprimiremos na tela. Veja o c\u00f3digo: <\/p>\n
[source language=”:Java”]
\npublic void listDataStores( OutputStream output ) {
\n \/\/output
\n PrintStream printer = new PrintStream( output );<\/p>\n
\/\/get all services from the catalog
\n List services = catalog.members( null );
\n for ( Iterator s = services.iterator(); s.hasNext(); ) {
\n Service service = (Service) s.next();<\/p>\n
\/\/ first we must test to see wether this
\n \/\/ handle is backed by a datastore
\n if ( service.canResolve( DataStore.class ) ) {
\n \/\/it is a data store, write it to output
\n printer.println( service.getIdentifier().toString() );
\n }
\n }
\n}
\n[\/source]<\/p>\n
Agora iremos implementar a lista de featuretypes. Veja o abaixo:<\/p>\n
[source language=”:Java”]
\npublic void listFeatureType( OutputStream output ) {
\n \/\/output
\n PrintStream printer = new PrintStream( output );<\/p>\n
\/\/get all services from the catalog
\n List services = catalog.members( null );
\n for ( Iterator s = services.iterator(); s.hasNext(); ) {
\n Service service = (Service) s.next();<\/p>\n
\/\/get all children
\n List geoResources = service.members( null );
\n for ( Iterator g = geoResources.iterator(); g.hasNext(); ) {
\n GeoResource geoResource = (GeoResourfce) g.next();<\/p>\n
\/\/do the test
\n if ( geoResource.canResolve( FeatureType.class ) ) {
\n \/\/do the resolve
\n FeatureType featureType = (FeatureType)
\n geoResource.resolve( FeatureType.class, null );<\/p>\n
printer.println( featureType.getTypeName() );
\n }<\/p>\n
}<\/p>\n
}
\n}
\n[\/source]<\/p>\n
Agora que voc\u00ea j\u00e1 tem o c\u00f3digo, voc\u00ea pode fazer facilmente a manipula\u00e7\u00e3o do seu cat\u00e1logo.<\/p>\n
Fonte: GeoServer <\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Neste tutorial voc\u00ea aprender\u00e1 como interagir com o cat\u00e1logo do GeoServer. O objetivo \u00e9 criar um servi\u00e7o simples que ir\u00e1 interagir com os dados das FeatureTypes e DataStores. Primeiro criaremos nosso servi\u00e7o, o qual chamaremos de CatalogLister e realizar\u00e1 as… Continue Reading →<\/a><\/p>\n","protected":false},"author":275,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,24,6],"tags":[208,223],"class_list":["post-187","post","type-post","status-publish","format-standard","hentry","category-geoserver","category-gis","category-tecnologia","tag-geoserver","tag-gis"],"_links":{"self":[{"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/posts\/187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/users\/275"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/comments?post=187"}],"version-history":[{"count":2,"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/posts\/187\/revisions"}],"predecessor-version":[{"id":3539,"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/posts\/187\/revisions\/3539"}],"wp:attachment":[{"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/media?parent=187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/categories?post=187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fernandoquadro.com.br\/html\/wp-json\/wp\/v2\/tags?post=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}