Update McpToolUtils.java

By default, a SyncMcpToolCallbackProvider binds all available MCP clients. However, in many real-world scenarios (e.g. multi-tenant applications or region-specific deployments), users may want to dynamically include only a subset of servers by name.
This method enables:

Runtime filtering of MCP clients based on supplied server names

Construction of a ToolCallbackProvider limited to permitted clients

Cleaner usage without manually filtering the list each time

Signed-off-by: Sizhe Fan <132420031+paoxiaomooo@users.noreply.github.com>

Author: paoxiaomooo

mcp/common/src/main/java/org/springframework/ai/mcp/McpToolUtils.java

@@ -364,5 +364,30 @@ public static List<ToolCallback> getToolCallbacksFromAsyncClients(List<McpAsyncC
 	private record Base64Wrapper(@JsonAlias("mimetype") @Nullable MimeType mimeType, @JsonAlias({
 			"base64", "b64", "imageData" }) @Nullable String data) {
 	}
+	/**
+	 * Constructs a {@link ToolCallbackProvider} that includes only the specified MCP clients.
+	 * <p>
+	 * This method filters the provided list of {@link McpSyncClient} instances by comparing 
+	 * their server names against the given set. Only clients with names present in 
+	 * {@code allowedServerNames} will be included in the resulting provider.
+	 *
+	 * @param mcpSyncClients       the complete list of available MCP synchronous clients
+	 * @param allowedServerNames   a set of server names that are permitted
+	 * @return a {@link ToolCallbackProvider} backed by only the allowed clients
+	 * @throws IllegalArgumentException if either parameter is null
+	 */
+	public static ToolCallbackProvider buildProviderByServerNames(
+	    List<McpSyncClient> mcpSyncClients,
+	    Set<String> allowedServerNames
+	) {
+	    if (mcpSyncClients == null || allowedServerNames == null) {
+	        throw new IllegalArgumentException("Client list and allowedServerNames must not be null");
+	    }
+	    List<McpSyncClient> selected = mcpSyncClients.stream()
+	        .filter(c -> allowedServerNames.contains(c.getServerInfo().name()))
+	        .toList();
+	    return new SyncMcpToolCallbackProvider(selected);
+	}
+
 
 }