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#24406 - Add String based URI template variants

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This commit is contained in:
Parviz ROzikov
2020-01-21 01:03:43 +07:00
committed by Rossen Stoyanchev
parent d1708460e7
commit 816466e492
3 changed files with 217 additions and 6 deletions
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187
spring-web/src/main/java/org/springframework/http/RequestEntity.java
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@@ -25,12 +25,18 @@ import java.util.Arrays;
import java.util.function.Consumer;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.MultiValueMap;
import org.springframework.util.ObjectUtils;
import org.springframework.web.util.DefaultUriBuilderFactory;
import org.springframework.web.util.UriTemplateHandler;
/**
* Extension of {@link HttpEntity} that adds a {@linkplain HttpMethod method} and
* {@linkplain URI uri}. Used in {@code RestTemplate} and {@code @Controller} methods.
* {@linkplain URI uri} or String based uri template with placeholder. Uri variables can be provided
* through the builder {@link HeadersBuilder#uriVariables(Object...)}.
*
* Used in {@code RestTemplate} and {@code @Controller} methods.
*
* <p>In {@code RestTemplate}, this class is used as parameter in
* {@link org.springframework.web.client.RestTemplate#exchange(RequestEntity, Class) exchange()}:
@@ -54,6 +60,19 @@ import org.springframework.util.ObjectUtils;
* RequestEntity&lt;MyRequest&gt; request = RequestEntity.post(uri).accept(MediaType.APPLICATION_JSON).body(body);
* </pre>
*
* <p> if you would like to provide a string base URI template with variable, consider using
* {@link RequestEntity#method(HttpMethod, String)}}, {@link RequestEntity#get(String)},
* {@link RequestEntity#post(String)}, {@link RequestEntity#put(String)}, {@link RequestEntity#delete(String)},
* {@link RequestEntity#patch(String)}, {@link RequestEntity#options(String)}
*
* <pre class="code>
* RequestEntity request = RequestEntity
* .post(&quot;https://example.com/{foo}&quot;)
* .uriVariables(&quot;bar&quot;)
* .accept(MediaType.APPLICATION_JSON)
* .build();
* </pre>
*
* <p>Can also be used in Spring MVC, as a parameter in a @Controller method:
* <pre class="code">
* &#64;RequestMapping("/handle")
@@ -66,6 +85,7 @@ import org.springframework.util.ObjectUtils;
*
* @author Arjen Poutsma
* @author Sebastien Deleuze
* @author Parviz Rozikov
* @since 4.1
* @param <T> the body type
* @see #getMethod()
@@ -73,11 +93,20 @@ import org.springframework.util.ObjectUtils;
*/
public class RequestEntity<T> extends HttpEntity<T> {
private final static UriTemplateHandler DEFAULT_URI_BUILDER_FACTORY = new DefaultUriBuilderFactory();
@Nullable
private final HttpMethod method;
@Nullable
private final URI url;
@Nullable
private String uri;
@Nullable
private Object[] uriVariables;
@Nullable
private final Type type;
@@ -146,7 +175,7 @@ public class RequestEntity<T> extends HttpEntity<T> {
* @since 4.3
*/
public RequestEntity(@Nullable T body, @Nullable MultiValueMap<String, String> headers,
@Nullable HttpMethod method, URI url, @Nullable Type type) {
@Nullable HttpMethod method, URI url, @Nullable Type type) {
super(body, headers);
this.method = method;
@@ -154,6 +183,24 @@ public class RequestEntity<T> extends HttpEntity<T> {
this.type = type;
}
/**
* Private Constructor with method, URL, UriTemplate and varargs urivariables but without body nor headers.
* @param method the method
* @param url the URL
* @param uri the UriTemplate
* @param uriVariables the uriVariables
*/
private RequestEntity(MultiValueMap<String, String> headers, HttpMethod method, @Nullable URI url,
@Nullable String uri, @Nullable Object... uriVariables) {
super(null, headers);
Assert.isTrue(uri == null || url == null, "Either url or url must be not null");
this.method = method;
this.url = url;
this.type = null;
this.uri = uri;
this.uriVariables = uriVariables;
}
/**
* Return the HTTP method of the request.
@@ -166,12 +213,30 @@ public class RequestEntity<T> extends HttpEntity<T> {
/**
* Return the URL of the request.
* Used {@link org.springframework.web.util.DefaultUriBuilderFactory} to expand and
* encode {@link DefaultUriBuilderFactory#setEncodingMode} when provided {@link RequestEntity#uri}
* @return the URL as a {@code URI}
*/
public URI getUrl() {
return this.url;
if (uri == null) {
return this.url;
}
return DEFAULT_URI_BUILDER_FACTORY.expand(uri, uriVariables);
}
/**
* Return the URL of the request.
* @return the URL as a {@code URI}
* @since 5.3
*/
public URI getUrl(UriTemplateHandler uriTemplateHandler) {
if (uri == null) {
return this.url;
}
return uriTemplateHandler.expand(uri, uriVariables);
}
/**
* Return the type of the request's body.
* @return the request's body type, or {@code null} if not known
@@ -241,6 +306,19 @@ public class RequestEntity<T> extends HttpEntity<T> {
return new DefaultBodyBuilder(method, url);
}
/**
* Create a builder with the given method and given string base uri template.
* @param method the HTTP method (GET, POST, etc)
* @param uri the uri
* @return the created builder
* @see RequestEntity
* @since 5.3
*/
public static BodyBuilder method(HttpMethod method, String uri) {
return new DefaultBodyBuilder(method, uri);
}
/**
* Create an HTTP GET builder with the given url.
* @param url the URL
@@ -250,6 +328,16 @@ public class RequestEntity<T> extends HttpEntity<T> {
return method(HttpMethod.GET, url);
}
/**
* Create an HTTP GET builder with the given string base uri template.
* @param uri the uri template
* @return the created builder
* @since 5.3
*/
public static HeadersBuilder<?> get(String uri) {
return method(HttpMethod.GET, uri);
}
/**
* Create an HTTP HEAD builder with the given url.
* @param url the URL
@@ -259,6 +347,16 @@ public class RequestEntity<T> extends HttpEntity<T> {
return method(HttpMethod.HEAD, url);
}
/**
* Create an HTTP HEAD builder with the given string base uri template.
* @param uri the uri template
* @return the created builder
* @since 5.3
*/
public static HeadersBuilder<?> head(String uri) {
return method(HttpMethod.HEAD, uri);
}
/**
* Create an HTTP POST builder with the given url.
* @param url the URL
@@ -268,6 +366,16 @@ public class RequestEntity<T> extends HttpEntity<T> {
return method(HttpMethod.POST, url);
}
/**
* Create an HTTP POST builder with the given string base uri template.
* @param uri the uri template
* @return the created builder
* @since 5.3
*/
public static BodyBuilder post(String uri) {
return method(HttpMethod.POST, uri);
}
/**
* Create an HTTP PUT builder with the given url.
* @param url the URL
@@ -277,6 +385,16 @@ public class RequestEntity<T> extends HttpEntity<T> {
return method(HttpMethod.PUT, url);
}
/**
* Create an HTTP PUT builder with the given string base uri template.
* @param uri the uri template
* @return the created builder
* @since 5.3
*/
public static BodyBuilder put(String uri) {
return method(HttpMethod.PUT, uri);
}
/**
* Create an HTTP PATCH builder with the given url.
* @param url the URL
@@ -286,6 +404,16 @@ public class RequestEntity<T> extends HttpEntity<T> {
return method(HttpMethod.PATCH, url);
}
/**
* Create an HTTP PATCH builder with the given string base uri template.
* @param uri the uri template
* @return the created builder
* @since 5.3
*/
public static BodyBuilder patch(String uri) {
return method(HttpMethod.PATCH, uri);
}
/**
* Create an HTTP DELETE builder with the given url.
* @param url the URL
@@ -295,6 +423,16 @@ public class RequestEntity<T> extends HttpEntity<T> {
return method(HttpMethod.DELETE, url);
}
/**
* Create an HTTP DELETE builder with the given string base uri template.
* @param uri the uri template
* @return the created builder
* @since 5.3
*/
public static HeadersBuilder<?> delete(String uri) {
return method(HttpMethod.DELETE, uri);
}
/**
* Creates an HTTP OPTIONS builder with the given url.
* @param url the URL
@@ -304,6 +442,16 @@ public class RequestEntity<T> extends HttpEntity<T> {
return method(HttpMethod.OPTIONS, url);
}
/**
* Creates an HTTP OPTIONS builder with the given string base uri template.
* @param uri the uri template
* @return the created builder
* @since 5.3
*/
public static HeadersBuilder<?> options(String uri) {
return method(HttpMethod.OPTIONS, uri);
}
/**
* Defines a builder that adds headers to the request entity.
@@ -383,6 +531,13 @@ public class RequestEntity<T> extends HttpEntity<T> {
*/
B ifNoneMatch(String... ifNoneMatches);
/**
* Set the values of the {@code If-None-Match} header.
* @param uriVariables the variables to expand the template
* @since 5.3
*/
B uriVariables(Object... uriVariables);
/**
* Builds the request entity with no body.
* @return the request entity
@@ -439,13 +594,28 @@ public class RequestEntity<T> extends HttpEntity<T> {
private final HttpMethod method;
@Nullable
private final URI url;
@Nullable
private final String uri;
@Nullable
private Object[] uriVariables;
private final HttpHeaders headers = new HttpHeaders();
public DefaultBodyBuilder(HttpMethod method, URI url) {
this.method = method;
this.url = url;
this.uri = null;
}
public DefaultBodyBuilder(HttpMethod method, String uri) {
this.method = method;
this.uri = uri;
this.url = null;
}
@Override
@@ -518,9 +688,18 @@ public class RequestEntity<T> extends HttpEntity<T> {
return this;
}
@Override
public BodyBuilder uriVariables(Object... uriVariables) {
this.uriVariables = uriVariables;
return this;
}
@Override
public RequestEntity<Void> build() {
return new RequestEntity<>(this.headers, this.method, this.url);
if (this.url != null){
new RequestEntity<>(this.headers, this.method, this.url);
}
return new RequestEntity<>(this.headers, this.method, this.url, uri, uriVariables);
}
@Override

4
spring-web/src/main/java/org/springframework/web/client/RestTemplate.java
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@@ -638,7 +638,7 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
RequestCallback requestCallback = httpEntityCallback(requestEntity, responseType);
ResponseExtractor<ResponseEntity<T>> responseExtractor = responseEntityExtractor(responseType);
return nonNull(doExecute(requestEntity.getUrl(), requestEntity.getMethod(), requestCallback, responseExtractor));
return nonNull(doExecute(requestEntity.getUrl(this.uriTemplateHandler), requestEntity.getMethod(), requestCallback, responseExtractor));
}
@Override
@@ -648,7 +648,7 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
Type type = responseType.getType();
RequestCallback requestCallback = httpEntityCallback(requestEntity, type);
ResponseExtractor<ResponseEntity<T>> responseExtractor = responseEntityExtractor(type);
return nonNull(doExecute(requestEntity.getUrl(), requestEntity.getMethod(), requestCallback, responseExtractor));
return nonNull(doExecute(requestEntity.getUrl(this.uriTemplateHandler), requestEntity.getMethod(), requestCallback, responseExtractor));
}