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/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 * 
 * You can obtain a copy of the license at
 * http://www.opensource.org/licenses/cddl1.php
 * See the License for the specific language governing
 * permissions and limitations under the License.
 */

/*
 * UriBuilder.java
 *
 * Created on July 18, 2007, 11:53 AM
 *
 */

package javax.ws.rs.core;

import java.lang.reflect.Method;
import java.net.URI;
import java.util.Map;
import javax.ws.rs.ext.RuntimeDelegate;

/**
 * URI template aware utility class for building URIs from their components. See
 * {@link javax.ws.rs.Path#value} for an explanation of URI templates.
 * 
 * 

Builder methods perform contextual encoding of characters not permitted in * the corresponding URI component following the rules of the * application/x-www-form-urlencoded * media type for query parameters and * RFC 3986 for all other * components. Note that only characters not permitted in a particular component * are subject to encoding so, e.g., a path supplied to one of the {@code path} * methods may contain matrix parameters or multiple path segments since the * separators are legal characters and will not be encoded. Percent encoded * values are also recognized where allowed and will not be double encoded.

* *

URI templates are allowed in most components of a URI but their value is * restricted to a particular component. E.g. *

UriBuilder.fromPath("{arg1}").build("foo#bar");
* would result in encoding of the '#' such that the resulting URI is * "foo%23bar". To create a URI "foo#bar" use *
UriBuilder.fromPath("{arg1}").fragment("{arg2}").build("foo", "bar")
* instead. URI template names and delimiters are never encoded but their * values are encoded when a URI is built. * Template parameter regular expressions are ignored when building a URI, i.e. * no validation is performed. * * @see java.net.URI * @see javax.ws.rs.Path */ public abstract class UriBuilder { /** * Protected constructor, use one of the static fromXXX * methods to obtain an instance. */ protected UriBuilder() {} /** * Creates a new instance of UriBuilder. * @return a new instance of UriBuilder */ protected static UriBuilder newInstance() { UriBuilder b = RuntimeDelegate.getInstance().createUriBuilder(); return b; } /** * Create a new instance initialized from an existing URI. * @param uri a URI that will be used to initialize the UriBuilder. * @return a new UriBuilder * @throws IllegalArgumentException if uri is null */ public static UriBuilder fromUri(URI uri) throws IllegalArgumentException { UriBuilder b = newInstance(); b.uri(uri); return b; } /** * Create a new instance initialized from an existing URI. * @param uri a URI that will be used to initialize the UriBuilder, may not * contain URI parameters. * @return a new UriBuilder * @throws IllegalArgumentException if uri is not a valid URI or is null */ public static UriBuilder fromUri(String uri) throws IllegalArgumentException { URI u; try { u = URI.create(uri); } catch (NullPointerException ex) { throw new IllegalArgumentException(ex.getMessage(), ex); } return fromUri(u); } /** * Create a new instance representing a relative URI initialized from a * URI path. * @param path a URI path that will be used to initialize the UriBuilder, * may contain URI template parameters. * @return a new UriBuilder * @throws IllegalArgumentException if path is null */ public static UriBuilder fromPath(String path) throws IllegalArgumentException { UriBuilder b = newInstance(); b.path(path); return b; } /** * Create a new instance representing a relative URI initialized from a * root resource class. * * @param resource a root resource whose {@link javax.ws.rs.Path} value will * be used to initialize the UriBuilder. * @return a new UriBuilder * @throws IllegalArgumentException if resource is not annotated with * {@link javax.ws.rs.Path} or resource is null. */ public static UriBuilder fromResource(Class resource) throws IllegalArgumentException { UriBuilder b = newInstance(); b.path(resource); return b; } /** * Create a copy of the UriBuilder preserving its state. This is a more * efficient means of creating a copy than constructing a new UriBuilder * from a URI returned by the {@link #build} method. * @return a copy of the UriBuilder */ @Override public abstract UriBuilder clone(); /** * Copies the non-null components of the supplied URI to the UriBuilder replacing * any existing values for those components. * @param uri the URI to copy components from * @return the updated UriBuilder * @throws IllegalArgumentException if uri is null */ public abstract UriBuilder uri(URI uri) throws IllegalArgumentException; /** * Set the URI scheme. * @param scheme the URI scheme, may contain URI template parameters. * A null value will unset the URI scheme. * @return the updated UriBuilder * @throws IllegalArgumentException if scheme is invalid */ public abstract UriBuilder scheme(String scheme) throws IllegalArgumentException; /** * Set the URI scheme-specific-part (see {@link java.net.URI}). This * method will overwrite any existing * values for authority, user-info, host, port and path. * @param ssp the URI scheme-specific-part, may contain URI template parameters * @return the updated UriBuilder * @throws IllegalArgumentException if ssp cannot be parsed or is null */ public abstract UriBuilder schemeSpecificPart(String ssp) throws IllegalArgumentException; /** * Set the URI user-info. * @param ui the URI user-info, may contain URI template parameters. * A null value will unset userInfo component of the URI. * @return the updated UriBuilder */ public abstract UriBuilder userInfo(String ui); /** * Set the URI host. * @return the updated UriBuilder * @param host the URI host, may contain URI template parameters. * A null value will unset the host component of the URI. * @throws IllegalArgumentException if host is invalid. */ public abstract UriBuilder host(String host) throws IllegalArgumentException; /** * Set the URI port. * @param port the URI port, a value of -1 will unset an explicit port. * @return the updated UriBuilder * @throws IllegalArgumentException if port is invalid */ public abstract UriBuilder port(int port) throws IllegalArgumentException; /** * Set the URI path. This method will overwrite * any existing path and associated matrix parameters. * Existing '/' characters are preserved thus a single value can * represent multiple URI path segments. * @param path the path, may contain URI template parameters. * A null value will unset the path component of the URI. * @return the updated UriBuilder */ public abstract UriBuilder replacePath(String path); /** * Append path to the existing path. * When constructing the final path, a '/' separator will be inserted * between the existing path and the supplied path if necessary. * Existing '/' characters are preserved thus a single value can * represent multiple URI path segments. * @param path the path, may contain URI template parameters * @return the updated UriBuilder * @throws IllegalArgumentException if path is null */ public abstract UriBuilder path(String path) throws IllegalArgumentException; /** * Append the path from a Path-annotated class to the * existing path. * When constructing the final path, a '/' separator will be inserted * between the existing path and the supplied path if necessary. * * @param resource a resource whose {@link javax.ws.rs.Path} value will be * used to obtain the path to append. * @return the updated UriBuilder * @throws IllegalArgumentException if resource is null, or * if resource is not annotated with {@link javax.ws.rs.Path} */ public abstract UriBuilder path(Class resource) throws IllegalArgumentException; /** * Append the path from a Path-annotated method to the * existing path. * When constructing the final path, a '/' separator will be inserted * between the existing path and the supplied path if necessary. * This method is a convenience shortcut to path(Method), it * can only be used in cases where there is a single method with the * specified name that is annotated with {@link javax.ws.rs.Path}. * * @param resource the resource containing the method * @param method the name of the method whose {@link javax.ws.rs.Path} value will be * used to obtain the path to append * @return the updated UriBuilder * @throws IllegalArgumentException if resource or method is null, * or there is more than or less than one variant of the method annotated with * {@link javax.ws.rs.Path} */ public abstract UriBuilder path(Class resource, String method) throws IllegalArgumentException; /** * Append the path from a {@link javax.ws.rs.Path}-annotated method to the * existing path. * When constructing the final path, a '/' separator will be inserted * between the existing path and the supplied path if necessary. * * @param method a method whose {@link javax.ws.rs.Path} value will be * used to obtain the path to append to the existing path * @return the updated UriBuilder * @throws IllegalArgumentException if method is null or is * not annotated with a {@link javax.ws.rs.Path} */ public abstract UriBuilder path(Method method) throws IllegalArgumentException; /** * Append path segments to the existing path. * When constructing the final path, a '/' separator will be inserted * between the existing path and the first path segment if necessary and * each supplied segment will also be separated by '/'. * Existing '/' characters are encoded thus a single value can * only represent a single URI path segment. * @param segments the path segment values, each may contain URI template * parameters * @return the updated UriBuilder * @throws IllegalArgumentException if segments or any element of segments * is null */ public abstract UriBuilder segment(String... segments) throws IllegalArgumentException; /** * Set the matrix parameters of the current final segment of the current URI path. * This method will overwrite any existing matrix parameters on the current final * segment of the current URI path. Note that the matrix parameters * are tied to a particular path segment; subsequent addition of path segments * will not affect their position in the URI path. * @param matrix the matrix parameters, may contain URI template parameters. * A null value will remove all matrix parameters of the current final segment * of the current URI path. * @return the updated UriBuilder * @throws IllegalArgumentException if matrix cannot be parsed * @see Matrix URIs */ public abstract UriBuilder replaceMatrix(String matrix) throws IllegalArgumentException; /** * Append a matrix parameter to the existing set of matrix parameters of * the current final segment of the URI path. If multiple values are supplied * the parameter will be added once per value. Note that the matrix parameters * are tied to a particular path segment; subsequent addition of path segments * will not affect their position in the URI path. * @param name the matrix parameter name, may contain URI template parameters * @param values the matrix parameter value(s), each object will be converted * to a {@code String} using its {@code toString()} method. Stringified * values may contain URI template parameters. * @return the updated UriBuilder * @throws IllegalArgumentException if name or values is null * @see Matrix URIs */ public abstract UriBuilder matrixParam(String name, Object... values) throws IllegalArgumentException; /** * Replace the existing value(s) of a matrix parameter on * the current final segment of the URI path. If multiple values are supplied * the parameter will be added once per value. Note that the matrix parameters * are tied to a particular path segment; subsequent addition of path segments * will not affect their position in the URI path. * @param name the matrix parameter name, may contain URI template parameters * @param values the matrix parameter value(s), each object will be converted * to a {@code String} using its {@code toString()} method. Stringified * values may contain URI template parameters. If {@code values} is empty * or null then all current values of the parameter are removed. * @return the updated UriBuilder * @throws IllegalArgumentException if name is null. * @see Matrix URIs */ public abstract UriBuilder replaceMatrixParam(String name, Object... values) throws IllegalArgumentException; /** * Set the URI query string. This method will overwrite any existing query * parameters. * @param query the URI query string, may contain URI template parameters. * A null value will remove all query parameters. * @return the updated UriBuilder * @throws IllegalArgumentException if query cannot be parsed */ public abstract UriBuilder replaceQuery(String query) throws IllegalArgumentException; /** * Append a query parameter to the existing set of query parameters. If * multiple values are supplied the parameter will be added once per value. * @param name the query parameter name, may contain URI template parameters * @param values the query parameter value(s), each object will be converted * to a {@code String} using its {@code toString()} method. Stringified * values may contain URI template parameters. * @return the updated UriBuilder * @throws IllegalArgumentException if name or values is null */ public abstract UriBuilder queryParam(String name, Object... values) throws IllegalArgumentException; /** * Replace the existing value(s) of a query parameter. If * multiple values are supplied the parameter will be added once per value. * @param name the query parameter name, may contain URI template parameters * @param values the query parameter value(s), each object will be converted * to a {@code String} using its {@code toString()} method. Stringified * values may contain URI template parameters. If {@code values} is empty * or null then all current values of the parameter are removed. * @return the updated UriBuilder * @throws IllegalArgumentException if name is null */ public abstract UriBuilder replaceQueryParam(String name, Object... values) throws IllegalArgumentException; /** * Set the URI fragment. * @param fragment the URI fragment, may contain URI template parameters. * A null value will remove any existing fragment. * @return the updated UriBuilder */ public abstract UriBuilder fragment(String fragment); /** * Build a URI, any URI template parameters will be replaced by the value in * the supplied map. Values are converted to String using * their toString method and are then encoded to match the * rules of the URI component to which they pertain. All '%' characters * in the stringified values will be encoded. * The state of the builder is unaffected; this method may be called * multiple times on the same builder instance. * @param values a map of URI template parameter names and values * @return the URI built from the UriBuilder * @throws IllegalArgumentException if there are any URI template parameters * without a supplied value, or if a template parameter value is null. * @throws UriBuilderException if a URI cannot be constructed based on the * current state of the builder. */ public abstract URI buildFromMap(Map values) throws IllegalArgumentException, UriBuilderException; /** * Build a URI, any URI template parameters will be replaced by the value in * the supplied map. Values are converted to String using * their toString method and are then encoded to match the * rules of the URI component to which they pertain. All % characters in * the stringified values that are not followed by two hexadecimal numbers * will be encoded. * The state of the builder is unaffected; this method may be called * multiple times on the same builder instance. * @param values a map of URI template parameter names and values * @return the URI built from the UriBuilder * @throws IllegalArgumentException if there are any URI template parameters * without a supplied value, or if a template parameter value is null. * @throws UriBuilderException if a URI cannot be constructed based on the * current state of the builder. */ public abstract URI buildFromEncodedMap(Map values) throws IllegalArgumentException, UriBuilderException; /** * Build a URI, using the supplied values in order to replace any URI * template parameters. Values are converted to String using * their toString method and are then encoded to match the * rules of the URI component to which they pertain. All '%' characters * in the stringified values will be encoded. * The state of the builder is unaffected; this method may be called * multiple times on the same builder instance. *

All instances of the same template parameter * will be replaced by the same value that corresponds to the position of the * first instance of the template parameter. e.g. the template "{a}/{b}/{a}" * with values {"x", "y", "z"} will result in the the URI "x/y/x", not * "x/y/z". * @param values a list of URI template parameter values * @return the URI built from the UriBuilder * @throws IllegalArgumentException if there are any URI template parameters * without a supplied value, or if a value is null. * @throws UriBuilderException if a URI cannot be constructed based on the * current state of the builder. */ public abstract URI build(Object... values) throws IllegalArgumentException, UriBuilderException; /** * Build a URI. * Any URI templates parameters will be replaced with the supplied values in * order. Values are converted to String using * their toString method and are then encoded to match the * rules of the URI component to which they pertain. All % characters in * the stringified values that are not followed by two hexadecimal numbers * will be encoded. * The state of the builder is unaffected; this method may be called * multiple times on the same builder instance. *

All instances of the same template parameter * will be replaced by the same value that corresponds to the position of the * first instance of the template parameter. e.g. the template "{a}/{b}/{a}" * with values {"x", "y", "z"} will result in the the URI "x/y/x", not * "x/y/z". * @param values a list of URI template parameter values * @return the URI built from the UriBuilder * @throws IllegalArgumentException if there are any URI template parameters * without a supplied value, or if a value is null. * @throws UriBuilderException if a URI cannot be constructed based on the * current state of the builder. */ public abstract URI buildFromEncoded(Object... values) throws IllegalArgumentException, UriBuilderException; }





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